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[InstCombine] Correct strtol folding with nonnull endptr 

Reflect in the pointer's offset the length of the leading part
of the consumed string preceding the first converted digit.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D130912
This commit is contained in:
Martin Sebor 2022-08-01 16:44:53 -06:00
parent 98cf745a03
commit bcef4d238d
3 changed files with 147 additions and 103 deletions
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12
llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
View File

@ -89,10 +89,12 @@ static Value *convertStrToInt(CallInst *CI, StringRef &Str, Value *EndPtr,
// Fail for an invalid base (required by POSIX).
return nullptr;
// Current offset into the original string to reflect in EndPtr.
size_t Offset = 0;
// Strip leading whitespace.
for (unsigned i = 0; i != Str.size(); ++i)
if (!isSpace((unsigned char)Str[i])) {
Str = Str.substr(i);
for ( ; Offset != Str.size(); ++Offset)
if (!isSpace((unsigned char)Str[Offset])) {
Str = Str.substr(Offset);
break;
}
@ -108,6 +110,7 @@ static Value *convertStrToInt(CallInst *CI, StringRef &Str, Value *EndPtr,
if (Str.empty())
// Fail for a sign with nothing after it.
return nullptr;
++Offset;
}
// Set Max to the absolute value of the minimum (for signed), or
@ -127,6 +130,7 @@ static Value *convertStrToInt(CallInst *CI, StringRef &Str, Value *EndPtr,
return nullptr;
Str = Str.drop_front(2);
Offset += 2;
Base = 16;
}
else if (Base == 0)
@ -167,7 +171,7 @@ static Value *convertStrToInt(CallInst *CI, StringRef &Str, Value *EndPtr,
if (EndPtr) {
// Store the pointer to the end.
Value *Off = B.getInt64(Str.size());
Value *Off = B.getInt64(Offset + Str.size());
Value *StrBeg = CI->getArgOperand(0);
Value *StrEnd = B.CreateInBoundsGEP(B.getInt8Ty(), StrBeg, Off, "endptr");
B.CreateStore(StrEnd, EndPtr);

139
llvm/test/Transforms/InstCombine/str-int-4.ll
View File

@ -35,107 +35,118 @@ declare i64 @strtoll(i8*, i8**, i32)
@x32max = constant [12 x i8] c" 0x7fffffff\00"
@i32max_p1 = constant [12 x i8] c" 2147483648\00"
@ui32max = constant [12 x i8] c" 4294967295\00"
@ui32max_p1 = constant [12 x i8] c" 4294967296\00"
@endptr = external global i8*
; Exercise folding calls to 32-bit strtol.
define void @fold_strtol(i32* %ps) {
; CHECK-LABEL: @fold_strtol(
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_im123, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: store i32 -123, i32* [[PS:%.*]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_ip234, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i32, i32* [[PS]], i64 1
; CHECK-NEXT: store i32 234, i32* [[PS1]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @i0, i64 0, i64 2), i8** @endptr, align 8
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i32, i32* [[PS]], i64 2
; CHECK-NEXT: store i32 0, i32* [[PS2]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @i9, i64 0, i64 2), i8** @endptr, align 8
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i32, i32* [[PS]], i64 3
; CHECK-NEXT: store i32 9, i32* [[PS3]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([3 x i8], [3 x i8]* @ia, i64 0, i64 2), i8** @endptr, align 8
; CHECK-NEXT: [[PS4:%.*]] = getelementptr i32, i32* [[PS]], i64 4
; CHECK-NEXT: store i32 10, i32* [[PS4]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @i19azAZ, i64 0, i64 6), i8** @endptr, align 8
; CHECK-NEXT: [[PS5:%.*]] = getelementptr i32, i32* [[PS]], i64 5
; CHECK-NEXT: store i32 76095035, i32* [[PS5]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @i32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS6:%.*]] = getelementptr i32, i32* [[PS]], i64 6
; CHECK-NEXT: store i32 -2147483648, i32* [[PS6]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @mo32min, i64 0, i64 14), i8** @endptr, align 8
; CHECK-NEXT: [[PS7:%.*]] = getelementptr i32, i32* [[PS]], i64 7
; CHECK-NEXT: store i32 -2147483648, i32* [[PS7]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @mx32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS8:%.*]] = getelementptr i32, i32* [[PS]], i64 8
; CHECK-NEXT: store i32 -2147483648, i32* [[PS8]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @mx32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS9:%.*]] = getelementptr i32, i32* [[PS]], i64 9
; CHECK-NEXT: store i32 -2147483648, i32* [[PS9]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @i32max, i64 0, i64 11), i8** @endptr, align 8
; CHECK-NEXT: [[PS10:%.*]] = getelementptr i32, i32* [[PS]], i64 10
; CHECK-NEXT: store i32 2147483647, i32* [[PS10]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @x32max, i64 0, i64 11), i8** @endptr, align 8
; CHECK-NEXT: [[PS11:%.*]] = getelementptr i32, i32* [[PS]], i64 11
; CHECK-NEXT: store i32 2147483647, i32* [[PS11]], align 4
; CHECK-NEXT: ret void
;
; Fold a valid sequence with leading POSIX whitespace and a minus to -123.
%pwsm123 = getelementptr [11 x i8], [11 x i8]* @ws_im123, i32 0, i32 0
%im123 = call i32 @strtol(i8* %pwsm123, i8** null, i32 10)
%im123 = call i32 @strtol(i8* %pwsm123, i8** @endptr, i32 10)
%ps0 = getelementptr i32, i32* %ps, i32 0
store i32 %im123, i32* %ps0
; Fold a valid sequence with leading POSIX whitespace and a plus to +234.
%pwsp234 = getelementptr [11 x i8], [11 x i8]* @ws_ip234, i32 0, i32 0
%ip234 = call i32 @strtol(i8* %pwsp234, i8** null, i32 10)
%ip234 = call i32 @strtol(i8* %pwsp234, i8** @endptr, i32 10)
%ps1 = getelementptr i32, i32* %ps, i32 1
store i32 %ip234, i32* %ps1
; Fold " 0" in base 0 to verify correct base autodetection.
%psi0 = getelementptr [3 x i8], [3 x i8]* @i0, i32 0, i32 0
%i0 = call i32 @strtol(i8* %psi0, i8** null, i32 0)
%i0 = call i32 @strtol(i8* %psi0, i8** @endptr, i32 0)
%ps2 = getelementptr i32, i32* %ps, i32 2
store i32 %i0, i32* %ps2
; Fold " 9" in base 0 to verify correct base autodetection.
%psi9 = getelementptr [3 x i8], [3 x i8]* @i9, i32 0, i32 0
%i9 = call i32 @strtol(i8* %psi9, i8** null, i32 0)
%i9 = call i32 @strtol(i8* %psi9, i8** @endptr, i32 0)
%ps3 = getelementptr i32, i32* %ps, i32 3
store i32 %i9, i32* %ps3
; Fold " a" in base 16 to 10.
%psia = getelementptr [3 x i8], [3 x i8]* @ia, i32 0, i32 0
%ia = call i32 @strtol(i8* %psia, i8** null, i32 16)
%ia = call i32 @strtol(i8* %psia, i8** @endptr, i32 16)
%ps4 = getelementptr i32, i32* %ps, i32 4
store i32 %ia, i32* %ps4
; Fold "19azAZ" in base 36 to 76095035.
%psi19azAZ = getelementptr [7 x i8], [7 x i8]* @i19azAZ, i32 0, i32 0
%i19azAZ = call i32 @strtol(i8* %psi19azAZ, i8** null, i32 36)
%i19azAZ = call i32 @strtol(i8* %psi19azAZ, i8** @endptr, i32 36)
%ps5 = getelementptr i32, i32* %ps, i32 5
store i32 %i19azAZ, i32* %ps5
; Fold INT32_MIN.
%psmin = getelementptr [13 x i8], [13 x i8]* @i32min, i32 0, i32 0
%min = call i32 @strtol(i8* %psmin, i8** null, i32 10)
%min = call i32 @strtol(i8* %psmin, i8** @endptr, i32 10)
%ps6 = getelementptr i32, i32* %ps, i32 6
store i32 %min, i32* %ps6
; Fold -INT32_MIN in octal.
%psmo32min = getelementptr [15 x i8], [15 x i8]* @mo32min, i32 0, i32 0
%mo32min = call i32 @strtol(i8* %psmo32min, i8** null, i32 0)
%mo32min = call i32 @strtol(i8* %psmo32min, i8** @endptr, i32 0)
%ps7 = getelementptr i32, i32* %ps, i32 7
store i32 %mo32min, i32* %ps7
; Fold -INT32_MIN in hex and base 0.
%psmx32min = getelementptr [13 x i8], [13 x i8]* @mx32min, i32 0, i32 0
%mx32min_0 = call i32 @strtol(i8* %psmx32min, i8** null, i32 0)
%mx32min_0 = call i32 @strtol(i8* %psmx32min, i8** @endptr, i32 0)
%ps8 = getelementptr i32, i32* %ps, i32 8
store i32 %mx32min_0, i32* %ps8
; Fold -INT32_MIN in hex and base 16.
%mx32min_16 = call i32 @strtol(i8* %psmx32min, i8** null, i32 16)
%mx32min_16 = call i32 @strtol(i8* %psmx32min, i8** @endptr, i32 16)
%ps9 = getelementptr i32, i32* %ps, i32 9
store i32 %mx32min_16, i32* %ps9
; Fold INT32_MAX.
%psmax = getelementptr [12 x i8], [12 x i8]* @i32max, i32 0, i32 0
%max = call i32 @strtol(i8* %psmax, i8** null, i32 10)
%max = call i32 @strtol(i8* %psmax, i8** @endptr, i32 10)
%ps10 = getelementptr i32, i32* %ps, i32 10
store i32 %max, i32* %ps10
; Fold INT32_MAX in hex.
%psxmax = getelementptr [12 x i8], [12 x i8]* @x32max, i32 0, i32 0
%xmax = call i32 @strtol(i8* %psxmax, i8** null, i32 0)
%xmax = call i32 @strtol(i8* %psxmax, i8** @endptr, i32 0)
%ps11 = getelementptr i32, i32* %ps, i32 11
store i32 %xmax, i32* %ps11
@ -147,48 +158,48 @@ define void @fold_strtol(i32* %ps) {
define void @call_strtol(i32* %ps) {
; CHECK-LABEL: @call_strtol(
; CHECK-NEXT: [[MINM1:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([13 x i8], [13 x i8]* @i32min_m1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MINM1:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @i32min_m1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: store i32 [[MINM1]], i32* [[PS:%.*]], align 4
; CHECK-NEXT: [[MAXP1:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([12 x i8], [12 x i8]* @i32max_p1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MAXP1:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @i32max_p1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i32, i32* [[PS]], i64 1
; CHECK-NEXT: store i32 [[MAXP1]], i32* [[PS1]], align 4
; CHECK-NEXT: [[IPLUS:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @wsplus, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[IPLUS:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @wsplus, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i32, i32* [[PS]], i64 2
; CHECK-NEXT: store i32 [[IPLUS]], i32* [[PS2]], align 4
; CHECK-NEXT: [[IA:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @ia, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[IA:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @ia, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i32, i32* [[PS]], i64 3
; CHECK-NEXT: store i32 [[IA]], i32* [[PS3]], align 4
; CHECK-NEXT: [[I8:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @i8, i64 0, i64 0), i8** null, i32 8)
; CHECK-NEXT: [[I8:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @i8, i64 0, i64 0), i8** nonnull @endptr, i32 8)
; CHECK-NEXT: [[PS4:%.*]] = getelementptr i32, i32* [[PS]], i64 4
; CHECK-NEXT: store i32 [[I8]], i32* [[PS4]], align 4
; CHECK-NEXT: [[I0X:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @x0x, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[I0X:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @x0x, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS5:%.*]] = getelementptr i32, i32* [[PS]], i64 5
; CHECK-NEXT: store i32 [[I0X]], i32* [[PS5]], align 4
; CHECK-NEXT: [[IWSPWS0:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([5 x i8], [5 x i8]* @wsplusws0, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[IWSPWS0:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @wsplusws0, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS6:%.*]] = getelementptr i32, i32* [[PS]], i64 6
; CHECK-NEXT: store i32 [[IWSPWS0]], i32* [[PS6]], align 4
; CHECK-NEXT: [[I19AZAZ:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @i19azAZ, i64 0, i64 0), i8** null, i32 35)
; CHECK-NEXT: [[I19AZAZ:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @i19azAZ, i64 0, i64 0), i8** nonnull @endptr, i32 35)
; CHECK-NEXT: [[PS7:%.*]] = getelementptr i32, i32* [[PS]], i64 7
; CHECK-NEXT: store i32 [[I19AZAZ]], i32* [[PS7]], align 4
; CHECK-NEXT: [[O32MIN:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([15 x i8], [15 x i8]* @o32min, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[O32MIN:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @o32min, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS8:%.*]] = getelementptr i32, i32* [[PS]], i64 8
; CHECK-NEXT: store i32 [[O32MIN]], i32* [[PS8]], align 4
; CHECK-NEXT: [[X32MIN:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 0), i8** null, i32 0)
; CHECK-NEXT: [[X32MIN:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 0), i8** nonnull @endptr, i32 0)
; CHECK-NEXT: [[PS9:%.*]] = getelementptr i32, i32* [[PS]], i64 9
; CHECK-NEXT: store i32 [[X32MIN]], i32* [[PS9]], align 4
; CHECK-NEXT: [[X32MIN_10:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[X32MIN_10:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS10:%.*]] = getelementptr i32, i32* [[PS]], i64 10
; CHECK-NEXT: store i32 [[X32MIN_10]], i32* [[PS10]], align 4
; CHECK-NEXT: [[NWS:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[NWS:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS11:%.*]] = getelementptr i32, i32* [[PS]], i64 11
; CHECK-NEXT: store i32 [[NWS]], i32* [[PS11]], align 4
; CHECK-NEXT: [[NWSP6:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** null, i32 10)
; CHECK-NEXT: [[NWSP6:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS12:%.*]] = getelementptr i32, i32* [[PS]], i64 12
; CHECK-NEXT: store i32 [[NWSP6]], i32* [[PS12]], align 4
; CHECK-NEXT: [[I0B1:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @i0, i64 0, i64 0), i8** null, i32 1)
; CHECK-NEXT: [[I0B1:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @i0, i64 0, i64 0), i8** nonnull @endptr, i32 1)
; CHECK-NEXT: [[PS13:%.*]] = getelementptr i32, i32* [[PS]], i64 13
; CHECK-NEXT: store i32 [[I0B1]], i32* [[PS13]], align 4
; CHECK-NEXT: [[I0B256:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([3 x i8], [3 x i8]* @i0, i64 0, i64 0), i8** null, i32 256)
; CHECK-NEXT: [[I0B256:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @i0, i64 0, i64 0), i8** nonnull @endptr, i32 256)
; CHECK-NEXT: [[PS14:%.*]] = getelementptr i32, i32* [[PS]], i64 14
; CHECK-NEXT: store i32 [[I0B256]], i32* [[PS14]], align 4
; CHECK-NEXT: ret void
@ -196,90 +207,90 @@ define void @call_strtol(i32* %ps) {
; Do not fold the result of conversion that's less than INT32_MIN.
%psminm1 = getelementptr [13 x i8], [13 x i8]* @i32min_m1, i32 0, i32 0
%minm1 = call i32 @strtol(i8* %psminm1, i8** null, i32 10)
%minm1 = call i32 @strtol(i8* %psminm1, i8** @endptr, i32 10)
%ps0 = getelementptr i32, i32* %ps, i32 0
store i32 %minm1, i32* %ps0
; Do not fold the result of conversion that's greater than INT32_MAX.
%psmaxp1 = getelementptr [12 x i8], [12 x i8]* @i32max_p1, i32 0, i32 0
%maxp1 = call i32 @strtol(i8* %psmaxp1, i8** null, i32 10)
%maxp1 = call i32 @strtol(i8* %psmaxp1, i8** @endptr, i32 10)
%ps1 = getelementptr i32, i32* %ps, i32 1
store i32 %maxp1, i32* %ps1
; Do not fold " +".
%psplus = getelementptr [3 x i8], [3 x i8]* @wsplus, i32 0, i32 0
%iplus = call i32 @strtol(i8* %psplus, i8** null, i32 0)
%iplus = call i32 @strtol(i8* %psplus, i8** @endptr, i32 0)
%ps2 = getelementptr i32, i32* %ps, i32 2
store i32 %iplus, i32* %ps2
; Do not fold " a" in base 0.
%psia = getelementptr [3 x i8], [3 x i8]* @ia, i32 0, i32 0
%ia = call i32 @strtol(i8* %psia, i8** null, i32 0)
%ia = call i32 @strtol(i8* %psia, i8** @endptr, i32 0)
%ps3 = getelementptr i32, i32* %ps, i32 3
store i32 %ia, i32* %ps3
; Do not fold " 8" in base 8.
%psi8 = getelementptr [3 x i8], [3 x i8]* @i8, i32 0, i32 0
%i8 = call i32 @strtol(i8* %psi8, i8** null, i32 8)
%i8 = call i32 @strtol(i8* %psi8, i8** @endptr, i32 8)
%ps4 = getelementptr i32, i32* %ps, i32 4
store i32 %i8, i32* %ps4
; Do not fold the "0x" alone in base 0 that some implementations (e.g.,
; BSD and Darwin) set errno to EINVAL for.
%psx0x = getelementptr [3 x i8], [3 x i8]* @x0x, i32 0, i32 0
%i0x = call i32 @strtol(i8* %psx0x, i8** null, i32 0)
%i0x = call i32 @strtol(i8* %psx0x, i8** @endptr, i32 0)
%ps5 = getelementptr i32, i32* %ps, i32 5
store i32 %i0x, i32* %ps5
; Do not fold " + 0".
%pwspws0 = getelementptr [5 x i8], [5 x i8]* @wsplusws0, i32 0, i32 0
%iwspws0 = call i32 @strtol(i8* %pwspws0, i8** null, i32 0)
%iwspws0 = call i32 @strtol(i8* %pwspws0, i8** @endptr, i32 0)
%ps6 = getelementptr i32, i32* %ps, i32 6
store i32 %iwspws0, i32* %ps6
; Do not fold "19azAZ" in base 35.
%psi19azAZ = getelementptr [7 x i8], [7 x i8]* @i19azAZ, i32 0, i32 0
%i19azAZ = call i32 @strtol(i8* %psi19azAZ, i8** null, i32 35)
%i19azAZ = call i32 @strtol(i8* %psi19azAZ, i8** @endptr, i32 35)
%ps7 = getelementptr i32, i32* %ps, i32 7
store i32 %i19azAZ, i32* %ps7
; Do not fold INT32_MIN in octal.
%pso32min = getelementptr [15 x i8], [15 x i8]* @o32min, i32 0, i32 0
%o32min = call i32 @strtol(i8* %pso32min, i8** null, i32 0)
%o32min = call i32 @strtol(i8* %pso32min, i8** @endptr, i32 0)
%ps8 = getelementptr i32, i32* %ps, i32 8
store i32 %o32min, i32* %ps8
; Do not fold INT32_MIN in hex.
%psx32min = getelementptr [13 x i8], [13 x i8]* @x32min, i32 0, i32 0
%x32min = call i32 @strtol(i8* %psx32min, i8** null, i32 0)
%x32min = call i32 @strtol(i8* %psx32min, i8** @endptr, i32 0)
%ps9 = getelementptr i32, i32* %ps, i32 9
store i32 %x32min, i32* %ps9
; Do not fold INT32_MIN in hex in base 10.
%x32min_10 = call i32 @strtol(i8* %psx32min, i8** null, i32 10)
%x32min_10 = call i32 @strtol(i8* %psx32min, i8** @endptr, i32 10)
%ps10 = getelementptr i32, i32* %ps, i32 10
store i32 %x32min_10, i32* %ps10
; Do not fold a sequence consisting of just whitespace characters.
%psws = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 0
%nws = call i32 @strtol(i8* %psws, i8** null, i32 10)
%nws = call i32 @strtol(i8* %psws, i8** @endptr, i32 10)
%ps11 = getelementptr i32, i32* %ps, i32 11
store i32 %nws, i32* %ps11
; Do not fold an empty sequence.
%pswsp6 = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 6
%nwsp6 = call i32 @strtol(i8* %pswsp6, i8** null, i32 10)
%nwsp6 = call i32 @strtol(i8* %pswsp6, i8** @endptr, i32 10)
%ps12 = getelementptr i32, i32* %ps, i32 12
store i32 %nwsp6, i32* %ps12
; Do not fold the invalid base 1.
%psi0 = getelementptr [3 x i8], [3 x i8]* @i0, i32 0, i32 0
%i0b1 = call i32 @strtol(i8* %psi0, i8** null, i32 1)
%i0b1 = call i32 @strtol(i8* %psi0, i8** @endptr, i32 1)
%ps13 = getelementptr i32, i32* %ps, i32 13
store i32 %i0b1, i32* %ps13
; Do not fold the invalid base 256.
%i0b256 = call i32 @strtol(i8* %psi0, i8** null, i32 256)
%i0b256 = call i32 @strtol(i8* %psi0, i8** @endptr, i32 256)
%ps14 = getelementptr i32, i32* %ps, i32 14
store i32 %i0b256, i32* %ps14
@ -301,36 +312,40 @@ define void @call_strtol(i32* %ps) {
define void @fold_strtoll(i64* %ps) {
; CHECK-LABEL: @fold_strtoll(
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_im123, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: store i64 -123, i64* [[PS:%.*]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_ip234, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i64, i64* [[PS]], i64 1
; CHECK-NEXT: store i64 234, i64* [[PS1]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @i64min, i64 0, i64 21), i8** @endptr, align 8
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i64, i64* [[PS]], i64 2
; CHECK-NEXT: store i64 -9223372036854775808, i64* [[PS2]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @i64max, i64 0, i64 20), i8** @endptr, align 8
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i64, i64* [[PS]], i64 3
; CHECK-NEXT: store i64 9223372036854775807, i64* [[PS3]], align 4
; CHECK-NEXT: ret void
;
; Fold a valid sequence with leading POSIX whitespace and a minus to -123.
%pwsm123 = getelementptr [11 x i8], [11 x i8]* @ws_im123, i32 0, i32 0
%im123 = call i64 @strtoll(i8* %pwsm123, i8** null, i32 10)
%im123 = call i64 @strtoll(i8* %pwsm123, i8** @endptr, i32 10)
%ps0 = getelementptr i64, i64* %ps, i32 0
store i64 %im123, i64* %ps0
; Fold a valid sequence with leading POSIX whitespace and a plus to +234.
%pwsp234 = getelementptr [11 x i8], [11 x i8]* @ws_ip234, i32 0, i32 0
%ip234 = call i64 @strtoll(i8* %pwsp234, i8** null, i32 10)
%ip234 = call i64 @strtoll(i8* %pwsp234, i8** @endptr, i32 10)
%ps1 = getelementptr i64, i64* %ps, i32 1
store i64 %ip234, i64* %ps1
; Fold INT64_MIN.
%psmin = getelementptr [22 x i8], [22 x i8]* @i64min, i32 0, i32 0
%min = call i64 @strtoll(i8* %psmin, i8** null, i32 10)
%min = call i64 @strtoll(i8* %psmin, i8** @endptr, i32 10)
%ps2 = getelementptr i64, i64* %ps, i32 2
store i64 %min, i64* %ps2
; Fold INT64_MAX.
%psmax = getelementptr [21 x i8], [21 x i8]* @i64max, i32 0, i32 0
%max = call i64 @strtoll(i8* %psmax, i8** null, i32 10)
%max = call i64 @strtoll(i8* %psmax, i8** @endptr, i32 10)
%ps3 = getelementptr i64, i64* %ps, i32 3
store i64 %max, i64* %ps3
@ -342,40 +357,40 @@ define void @fold_strtoll(i64* %ps) {
define void @call_strtoll(i64* %ps) {
; CHECK-LABEL: @call_strtoll(
; CHECK-NEXT: [[MINM1:%.*]] = call i64 @strtoll(i8* nocapture getelementptr inbounds ([22 x i8], [22 x i8]* @i64min_m1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MINM1:%.*]] = call i64 @strtoll(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @i64min_m1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: store i64 [[MINM1]], i64* [[PS:%.*]], align 4
; CHECK-NEXT: [[MAXP1:%.*]] = call i64 @strtoll(i8* nocapture getelementptr inbounds ([21 x i8], [21 x i8]* @i64max_p1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MAXP1:%.*]] = call i64 @strtoll(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @i64max_p1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i64, i64* [[PS]], i64 1
; CHECK-NEXT: store i64 [[MAXP1]], i64* [[PS1]], align 4
; CHECK-NEXT: [[NWS:%.*]] = call i64 @strtoll(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[NWS:%.*]] = call i64 @strtoll(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i64, i64* [[PS]], i64 2
; CHECK-NEXT: store i64 [[NWS]], i64* [[PS2]], align 4
; CHECK-NEXT: [[NWSP6:%.*]] = call i64 @strtoll(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** null, i32 10)
; CHECK-NEXT: [[NWSP6:%.*]] = call i64 @strtoll(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i64, i64* [[PS]], i64 3
; CHECK-NEXT: store i64 [[NWSP6]], i64* [[PS3]], align 4
; CHECK-NEXT: ret void
;
; Do not fold the result of conversion that's less than INT64_MIN.
%psminm1 = getelementptr [22 x i8], [22 x i8]* @i64min_m1, i32 0, i32 0
%minm1 = call i64 @strtoll(i8* %psminm1, i8** null, i32 10)
%minm1 = call i64 @strtoll(i8* %psminm1, i8** @endptr, i32 10)
%ps0 = getelementptr i64, i64* %ps, i32 0
store i64 %minm1, i64* %ps0
; Do not fold the result of conversion that's greater than INT64_MAX.
%psmaxp1 = getelementptr [21 x i8], [21 x i8]* @i64max_p1, i32 0, i32 0
%maxp1 = call i64 @strtoll(i8* %psmaxp1, i8** null, i32 10)
%maxp1 = call i64 @strtoll(i8* %psmaxp1, i8** @endptr, i32 10)
%ps1 = getelementptr i64, i64* %ps, i32 1
store i64 %maxp1, i64* %ps1
; Do not fold a sequence consisting of just whitespace characters.
%psws = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 0
%nws = call i64 @strtoll(i8* %psws, i8** null, i32 10)
%nws = call i64 @strtoll(i8* %psws, i8** @endptr, i32 10)
%ps2 = getelementptr i64, i64* %ps, i32 2
store i64 %nws, i64* %ps2
; Do not fold an empty sequence.
%pswsp6 = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 6
%nwsp6 = call i64 @strtoll(i8* %pswsp6, i8** null, i32 10)
%nwsp6 = call i64 @strtoll(i8* %pswsp6, i8** @endptr, i32 10)
%ps3 = getelementptr i64, i64* %ps, i32 3
store i64 %nwsp6, i64* %ps3
@ -391,29 +406,29 @@ define void @call_strtoll(i64* %ps) {
define void @call_strtol_trailing_space(i32* %ps) {
; CHECK-LABEL: @call_strtol_trailing_space(
; CHECK-NEXT: [[N1:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[N1:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i32, i32* [[PS:%.*]], i64 1
; CHECK-NEXT: store i32 [[N1]], i32* [[PS1]], align 4
; CHECK-NEXT: [[N2:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 2), i8** null, i32 10)
; CHECK-NEXT: [[N2:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 2), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i32, i32* [[PS]], i64 2
; CHECK-NEXT: store i32 [[N2]], i32* [[PS2]], align 4
; CHECK-NEXT: [[N3:%.*]] = call i32 @strtol(i8* nocapture getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 4), i8** null, i32 10)
; CHECK-NEXT: [[N3:%.*]] = call i32 @strtol(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @i_1_2_3_, i64 0, i64 4), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i32, i32* [[PS]], i64 3
; CHECK-NEXT: store i32 [[N3]], i32* [[PS3]], align 4
; CHECK-NEXT: ret void
;
%p1 = getelementptr [9 x i8], [9 x i8]* @i_1_2_3_, i32 0, i32 0
%n1 = call i32 @strtol(i8* %p1, i8** null, i32 10)
%n1 = call i32 @strtol(i8* %p1, i8** @endptr, i32 10)
%ps1 = getelementptr i32, i32* %ps, i32 1
store i32 %n1, i32* %ps1
%p2 = getelementptr [9 x i8], [9 x i8]* @i_1_2_3_, i32 0, i32 2
%n2 = call i32 @strtol(i8* %p2, i8** null, i32 10)
%n2 = call i32 @strtol(i8* %p2, i8** @endptr, i32 10)
%ps2 = getelementptr i32, i32* %ps, i32 2
store i32 %n2, i32* %ps2
%p3 = getelementptr [9 x i8], [9 x i8]* @i_1_2_3_, i32 0, i32 4
%n3 = call i32 @strtol(i8* %p3, i8** null, i32 10)
%n3 = call i32 @strtol(i8* %p3, i8** @endptr, i32 10)
%ps3 = getelementptr i32, i32* %ps, i32 3
store i32 %n3, i32* %ps3

99
llvm/test/Transforms/InstCombine/str-int-5.ll
View File

@ -39,32 +39,46 @@ declare i64 @strtoull(i8*, i8**, i32)
@x64max = constant [20 x i8] c" 0xffffffffffffffff\00"
@ui64max_p1 = constant [22 x i8] c" 18446744073709551616\00"
@endptr = external global i8*
; Exercise folding calls to 32-bit strtoul.
define void @fold_strtoul(i32* %ps) {
; CHECK-LABEL: @fold_strtoul(
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_im123, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: store i32 -123, i32* [[PS:%.*]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_ip234, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i32, i32* [[PS]], i64 1
; CHECK-NEXT: store i32 234, i32* [[PS1]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @i32min_m1, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i32, i32* [[PS]], i64 2
; CHECK-NEXT: store i32 2147483647, i32* [[PS2]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @i32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i32, i32* [[PS]], i64 3
; CHECK-NEXT: store i32 -2147483648, i32* [[PS3]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @o32min, i64 0, i64 14), i8** @endptr, align 8
; CHECK-NEXT: [[PS4:%.*]] = getelementptr i32, i32* [[PS]], i64 4
; CHECK-NEXT: store i32 -2147483648, i32* [[PS4]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @mo32min, i64 0, i64 14), i8** @endptr, align 8
; CHECK-NEXT: [[PS5:%.*]] = getelementptr i32, i32* [[PS]], i64 5
; CHECK-NEXT: store i32 -2147483648, i32* [[PS5]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS6:%.*]] = getelementptr i32, i32* [[PS]], i64 6
; CHECK-NEXT: store i32 -2147483648, i32* [[PS6]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @mx32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS7:%.*]] = getelementptr i32, i32* [[PS]], i64 7
; CHECK-NEXT: store i32 -2147483648, i32* [[PS7]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @i32max, i64 0, i64 11), i8** @endptr, align 8
; CHECK-NEXT: [[PS8:%.*]] = getelementptr i32, i32* [[PS]], i64 8
; CHECK-NEXT: store i32 2147483647, i32* [[PS8]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @mX01, i64 0, i64 5), i8** @endptr, align 8
; CHECK-NEXT: [[PS9:%.*]] = getelementptr i32, i32* [[PS]], i64 9
; CHECK-NEXT: store i32 -1, i32* [[PS9]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @i32max_p1, i64 0, i64 11), i8** @endptr, align 8
; CHECK-NEXT: [[PS10:%.*]] = getelementptr i32, i32* [[PS]], i64 10
; CHECK-NEXT: store i32 -2147483648, i32* [[PS10]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([12 x i8], [12 x i8]* @ui32max, i64 0, i64 11), i8** @endptr, align 8
; CHECK-NEXT: [[PS11:%.*]] = getelementptr i32, i32* [[PS]], i64 11
; CHECK-NEXT: store i32 -1, i32* [[PS11]], align 4
; CHECK-NEXT: ret void
@ -72,73 +86,73 @@ define void @fold_strtoul(i32* %ps) {
; Fold a valid sequence with leading POSIX whitespace and a minus to
; (uint32_t)-123.
%pwsm123 = getelementptr [11 x i8], [11 x i8]* @ws_im123, i32 0, i32 0
%im123 = call i32 @strtoul(i8* %pwsm123, i8** null, i32 10)
%im123 = call i32 @strtoul(i8* %pwsm123, i8** @endptr, i32 10)
%ps0 = getelementptr i32, i32* %ps, i32 0
store i32 %im123, i32* %ps0
; Fold a valid sequence with leading POSIX whitespace and a plus to +234.
%pwsp234 = getelementptr [11 x i8], [11 x i8]* @ws_ip234, i32 0, i32 0
%ip234 = call i32 @strtoul(i8* %pwsp234, i8** null, i32 10)
%ip234 = call i32 @strtoul(i8* %pwsp234, i8** @endptr, i32 10)
%ps1 = getelementptr i32, i32* %ps, i32 1
store i32 %ip234, i32* %ps1
; Fold the result of conversion that's equal to INT32_MIN - 1.
%psi32minm1 = getelementptr [13 x i8], [13 x i8]* @i32min_m1, i32 0, i32 0
%i32min32m1 = call i32 @strtoul(i8* %psi32minm1, i8** null, i32 10)
%i32min32m1 = call i32 @strtoul(i8* %psi32minm1, i8** @endptr, i32 10)
%ps2 = getelementptr i32, i32* %ps, i32 2
store i32 %i32min32m1, i32* %ps2
; Fold INT32_MIN.
%psi32min = getelementptr [13 x i8], [13 x i8]* @i32min, i32 0, i32 0
%i32min = call i32 @strtoul(i8* %psi32min, i8** null, i32 10)
%i32min = call i32 @strtoul(i8* %psi32min, i8** @endptr, i32 10)
%ps3 = getelementptr i32, i32* %ps, i32 3
store i32 %i32min, i32* %ps3
; Fold INT32_MIN in octal.
%pso32min = getelementptr [15 x i8], [15 x i8]* @o32min, i32 0, i32 0
%o32min = call i32 @strtoul(i8* %pso32min, i8** null, i32 0)
%o32min = call i32 @strtoul(i8* %pso32min, i8** @endptr, i32 0)
%ps4 = getelementptr i32, i32* %ps, i32 4
store i32 %o32min, i32* %ps4
; Fold -INT32_MIN in octal.
%psmo32min = getelementptr [15 x i8], [15 x i8]* @mo32min, i32 0, i32 0
%mo32min = call i32 @strtoul(i8* %psmo32min, i8** null, i32 0)
%mo32min = call i32 @strtoul(i8* %psmo32min, i8** @endptr, i32 0)
%ps5 = getelementptr i32, i32* %ps, i32 5
store i32 %mo32min, i32* %ps5
; Fold INT32_MIN in hex.
%psx32min = getelementptr [13 x i8], [13 x i8]* @x32min, i32 0, i32 0
%x32min = call i32 @strtoul(i8* %psx32min, i8** null, i32 0)
%x32min = call i32 @strtoul(i8* %psx32min, i8** @endptr, i32 0)
%ps6 = getelementptr i32, i32* %ps, i32 6
store i32 %x32min, i32* %ps6
; Fold -INT32_MIN in hex.
%psmx32min = getelementptr [13 x i8], [13 x i8]* @mx32min, i32 0, i32 0
%mx32min = call i32 @strtoul(i8* %psmx32min, i8** null, i32 0)
%mx32min = call i32 @strtoul(i8* %psmx32min, i8** @endptr, i32 0)
%ps7 = getelementptr i32, i32* %ps, i32 7
store i32 %x32min, i32* %ps7
; Fold INT32_MAX.
%psi32max = getelementptr [12 x i8], [12 x i8]* @i32max, i32 0, i32 0
%i32max = call i32 @strtoul(i8* %psi32max, i8** null, i32 10)
%i32max = call i32 @strtoul(i8* %psi32max, i8** @endptr, i32 10)
%ps8 = getelementptr i32, i32* %ps, i32 8
store i32 %i32max, i32* %ps8
; Fold -0x01.
%psmX01 = getelementptr [6 x i8], [6 x i8]* @mX01, i32 0, i32 0
%mX01 = call i32 @strtoul(i8* %psmX01, i8** null, i32 0)
%mX01 = call i32 @strtoul(i8* %psmX01, i8** @endptr, i32 0)
%ps9 = getelementptr i32, i32* %ps, i32 9
store i32 %mX01, i32* %ps9
; Fold the result of conversion that's equal to INT32_MAX + 1.
%psmax32p1 = getelementptr [12 x i8], [12 x i8]* @i32max_p1, i32 0, i32 0
%i32max32p1 = call i32 @strtoul(i8* %psmax32p1, i8** null, i32 10)
%i32max32p1 = call i32 @strtoul(i8* %psmax32p1, i8** @endptr, i32 10)
%ps10 = getelementptr i32, i32* %ps, i32 10
store i32 %i32max32p1, i32* %ps10
; Fold UINT32_MAX.
%psmax = getelementptr [12 x i8], [12 x i8]* @ui32max, i32 0, i32 0
%ui32max = call i32 @strtoul(i8* %psmax, i8** null, i32 10)
%ui32max = call i32 @strtoul(i8* %psmax, i8** @endptr, i32 10)
%ps11 = getelementptr i32, i32* %ps, i32 11
store i32 %ui32max, i32* %ps11
@ -150,15 +164,15 @@ define void @fold_strtoul(i32* %ps) {
define void @call_strtoul(i32* %ps) {
; CHECK-LABEL: @call_strtoul(
; CHECK-NEXT: [[MINM1:%.*]] = call i32 @strtoul(i8* nocapture getelementptr inbounds ([22 x i8], [22 x i8]* @i64min_m1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MINM1:%.*]] = call i32 @strtoul(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @i64min_m1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: store i32 [[MINM1]], i32* [[PS:%.*]], align 4
; CHECK-NEXT: [[MAXP1:%.*]] = call i32 @strtoul(i8* nocapture getelementptr inbounds ([12 x i8], [12 x i8]* @ui32max_p1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MAXP1:%.*]] = call i32 @strtoul(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @ui32max_p1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i32, i32* [[PS]], i64 1
; CHECK-NEXT: store i32 [[MAXP1]], i32* [[PS1]], align 4
; CHECK-NEXT: [[NWS:%.*]] = call i32 @strtoul(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[NWS:%.*]] = call i32 @strtoul(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i32, i32* [[PS]], i64 2
; CHECK-NEXT: store i32 [[NWS]], i32* [[PS2]], align 4
; CHECK-NEXT: [[NWSP6:%.*]] = call i32 @strtoul(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** null, i32 10)
; CHECK-NEXT: [[NWSP6:%.*]] = call i32 @strtoul(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i32, i32* [[PS]], i64 3
; CHECK-NEXT: store i32 [[NWSP6]], i32* [[PS3]], align 4
; CHECK-NEXT: ret void
@ -166,27 +180,27 @@ define void @call_strtoul(i32* %ps) {
; Do not fold the result of conversion that overflows uint32_t. This
; could be folded into a constant provided errnor were set to ERANGE.
%psminm1 = getelementptr [22 x i8], [22 x i8]* @i64min_m1, i32 0, i32 0
%minm1 = call i32 @strtoul(i8* %psminm1, i8** null, i32 10)
%minm1 = call i32 @strtoul(i8* %psminm1, i8** @endptr, i32 10)
%ps0 = getelementptr i32, i32* %ps, i32 0
store i32 %minm1, i32* %ps0
; Do not fold the result of conversion that's greater than UINT32_MAX
; (same logic as above applies here).
%psui32maxp1 = getelementptr [12 x i8], [12 x i8]* @ui32max_p1, i32 0, i32 0
%maxp1 = call i32 @strtoul(i8* %psui32maxp1, i8** null, i32 10)
%maxp1 = call i32 @strtoul(i8* %psui32maxp1, i8** @endptr, i32 10)
%ps1 = getelementptr i32, i32* %ps, i32 1
store i32 %maxp1, i32* %ps1
; Do not fold a sequence consisting of just whitespace characters.
%psws = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 0
%nws = call i32 @strtoul(i8* %psws, i8** null, i32 10)
%nws = call i32 @strtoul(i8* %psws, i8** @endptr, i32 10)
%ps2 = getelementptr i32, i32* %ps, i32 2
store i32 %nws, i32* %ps2
; Do not fold an empty sequence. The library call may or may not end up
; storing EINVAL in errno.
%pswsp6 = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 6
%nwsp6 = call i32 @strtoul(i8* %pswsp6, i8** null, i32 10)
%nwsp6 = call i32 @strtoul(i8* %pswsp6, i8** @endptr, i32 10)
%ps3 = getelementptr i32, i32* %ps, i32 3
store i32 %nwsp6, i32* %ps3
@ -198,25 +212,36 @@ define void @call_strtoul(i32* %ps) {
define void @fold_strtoull(i64* %ps) {
; CHECK-LABEL: @fold_strtoull(
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_im123, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: store i64 -123, i64* [[PS:%.*]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([11 x i8], [11 x i8]* @ws_ip234, i64 0, i64 10), i8** @endptr, align 8
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i64, i64* [[PS]], i64 1
; CHECK-NEXT: store i64 234, i64* [[PS1]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @i64min_m1, i64 0, i64 21), i8** @endptr, align 8
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i64, i64* [[PS]], i64 2
; CHECK-NEXT: store i64 9223372036854775807, i64* [[PS2]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @i32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i64, i64* [[PS]], i64 3
; CHECK-NEXT: store i64 -2147483648, i64* [[PS3]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([15 x i8], [15 x i8]* @o32min, i64 0, i64 14), i8** @endptr, align 8
; CHECK-NEXT: [[PS4:%.*]] = getelementptr i64, i64* [[PS]], i64 4
; CHECK-NEXT: store i64 2147483648, i64* [[PS4]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @x32min, i64 0, i64 12), i8** @endptr, align 8
; CHECK-NEXT: [[PS5:%.*]] = getelementptr i64, i64* [[PS]], i64 5
; CHECK-NEXT: store i64 2147483648, i64* [[PS5]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @i64min, i64 0, i64 21), i8** @endptr, align 8
; CHECK-NEXT: [[PS6:%.*]] = getelementptr i64, i64* [[PS]], i64 6
; CHECK-NEXT: store i64 -9223372036854775808, i64* [[PS6]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @i64max, i64 0, i64 20), i8** @endptr, align 8
; CHECK-NEXT: [[PS7:%.*]] = getelementptr i64, i64* [[PS]], i64 7
; CHECK-NEXT: store i64 9223372036854775807, i64* [[PS7]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([21 x i8], [21 x i8]* @i64max_p1, i64 0, i64 20), i8** @endptr, align 8
; CHECK-NEXT: [[PS8:%.*]] = getelementptr i64, i64* [[PS]], i64 8
; CHECK-NEXT: store i64 -9223372036854775808, i64* [[PS8]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([22 x i8], [22 x i8]* @ui64max, i64 0, i64 21), i8** @endptr, align 8
; CHECK-NEXT: [[PS9:%.*]] = getelementptr i64, i64* [[PS]], i64 9
; CHECK-NEXT: store i64 -1, i64* [[PS9]], align 4
; CHECK-NEXT: store i8* getelementptr inbounds ([20 x i8], [20 x i8]* @x64max, i64 0, i64 19), i8** @endptr, align 8
; CHECK-NEXT: [[PS10:%.*]] = getelementptr i64, i64* [[PS]], i64 10
; CHECK-NEXT: store i64 -1, i64* [[PS10]], align 4
; CHECK-NEXT: ret void
@ -224,67 +249,67 @@ define void @fold_strtoull(i64* %ps) {
; Fold a valid sequence with leading POSIX whitespace and a minus to
; (uint64_t)-123.
%pwsm123 = getelementptr [11 x i8], [11 x i8]* @ws_im123, i32 0, i32 0
%im123 = call i64 @strtoull(i8* %pwsm123, i8** null, i32 10)
%im123 = call i64 @strtoull(i8* %pwsm123, i8** @endptr, i32 10)
%ps0 = getelementptr i64, i64* %ps, i32 0
store i64 %im123, i64* %ps0
; Fold a valid sequence with leading POSIX whitespace and a plus to +234.
%pwsp234 = getelementptr [11 x i8], [11 x i8]* @ws_ip234, i32 0, i32 0
%ip234 = call i64 @strtoull(i8* %pwsp234, i8** null, i32 10)
%ip234 = call i64 @strtoull(i8* %pwsp234, i8** @endptr, i32 10)
%ps1 = getelementptr i64, i64* %ps, i32 1
store i64 %ip234, i64* %ps1
; Fold the result of conversion that's equal to INT64_MIN - 1.
%psi64minm1 = getelementptr [22 x i8], [22 x i8]* @i64min_m1, i32 0, i32 0
%i64min32m1 = call i64 @strtoull(i8* %psi64minm1, i8** null, i32 10)
%i64min32m1 = call i64 @strtoull(i8* %psi64minm1, i8** @endptr, i32 10)
%ps2 = getelementptr i64, i64* %ps, i32 2
store i64 %i64min32m1, i64* %ps2
; Fold INT32_MIN.
%psi32min = getelementptr [13 x i8], [13 x i8]* @i32min, i32 0, i32 0
%i32min = call i64 @strtoull(i8* %psi32min, i8** null, i32 10)
%i32min = call i64 @strtoull(i8* %psi32min, i8** @endptr, i32 10)
%ps3 = getelementptr i64, i64* %ps, i32 3
store i64 %i32min, i64* %ps3
; Fold INT32_MIN in octal.
%pso32min = getelementptr [15 x i8], [15 x i8]* @o32min, i32 0, i32 0
%o32min = call i64 @strtoull(i8* %pso32min, i8** null, i32 0)
%o32min = call i64 @strtoull(i8* %pso32min, i8** @endptr, i32 0)
%ps4 = getelementptr i64, i64* %ps, i32 4
store i64 %o32min, i64* %ps4
; Fold INT32_MIN in hex.
%psx32min = getelementptr [13 x i8], [13 x i8]* @x32min, i32 0, i32 0
%x32min = call i64 @strtoull(i8* %psx32min, i8** null, i32 0)
%x32min = call i64 @strtoull(i8* %psx32min, i8** @endptr, i32 0)
%ps5 = getelementptr i64, i64* %ps, i32 5
store i64 %x32min, i64* %ps5
; Fold INT64_MIN.
%psi64min = getelementptr [22 x i8], [22 x i8]* @i64min, i32 0, i32 0
%i64min = call i64 @strtoull(i8* %psi64min, i8** null, i32 10)
%i64min = call i64 @strtoull(i8* %psi64min, i8** @endptr, i32 10)
%ps6 = getelementptr i64, i64* %ps, i32 6
store i64 %i64min, i64* %ps6
; Fold INT64_MAX.
%psi64max = getelementptr [21 x i8], [21 x i8]* @i64max, i32 0, i32 0
%i64max = call i64 @strtoull(i8* %psi64max, i8** null, i32 10)
%i64max = call i64 @strtoull(i8* %psi64max, i8** @endptr, i32 10)
%ps7 = getelementptr i64, i64* %ps, i32 7
store i64 %i64max, i64* %ps7
; Fold the result of conversion that's equal to INT64_MAX + 1 to INT64_MIN.
%psmax32p1 = getelementptr [21 x i8], [21 x i8]* @i64max_p1, i32 0, i32 0
%i64max32p1 = call i64 @strtoull(i8* %psmax32p1, i8** null, i32 10)
%i64max32p1 = call i64 @strtoull(i8* %psmax32p1, i8** @endptr, i32 10)
%ps8 = getelementptr i64, i64* %ps, i32 8
store i64 %i64max32p1, i64* %ps8
; Fold UINT64_MAX.
%psmax = getelementptr [22 x i8], [22 x i8]* @ui64max, i32 0, i32 0
%ui64max = call i64 @strtoull(i8* %psmax, i8** null, i32 10)
%ui64max = call i64 @strtoull(i8* %psmax, i8** @endptr, i32 10)
%ps9 = getelementptr i64, i64* %ps, i32 9
store i64 %ui64max, i64* %ps9
; Fold UINT64_MAX in hex.
%psxmax = getelementptr [20 x i8], [20 x i8]* @x64max, i32 0, i32 0
%x64max = call i64 @strtoull(i8* %psxmax, i8** null, i32 0)
%x64max = call i64 @strtoull(i8* %psxmax, i8** @endptr, i32 0)
%ps10 = getelementptr i64, i64* %ps, i32 10
store i64 %x64max, i64* %ps10
@ -296,13 +321,13 @@ define void @fold_strtoull(i64* %ps) {
define void @call_strtoull(i64* %ps) {
; CHECK-LABEL: @call_strtoull(
; CHECK-NEXT: [[MAXP1:%.*]] = call i64 @strtoull(i8* nocapture getelementptr inbounds ([22 x i8], [22 x i8]* @ui64max_p1, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[MAXP1:%.*]] = call i64 @strtoull(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @ui64max_p1, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS1:%.*]] = getelementptr i64, i64* [[PS:%.*]], i64 1
; CHECK-NEXT: store i64 [[MAXP1]], i64* [[PS1]], align 4
; CHECK-NEXT: [[NWS:%.*]] = call i64 @strtoull(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** null, i32 10)
; CHECK-NEXT: [[NWS:%.*]] = call i64 @strtoull(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 0), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS2:%.*]] = getelementptr i64, i64* [[PS]], i64 2
; CHECK-NEXT: store i64 [[NWS]], i64* [[PS2]], align 4
; CHECK-NEXT: [[NWSP6:%.*]] = call i64 @strtoull(i8* nocapture getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** null, i32 10)
; CHECK-NEXT: [[NWSP6:%.*]] = call i64 @strtoull(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @ws, i64 0, i64 6), i8** nonnull @endptr, i32 10)
; CHECK-NEXT: [[PS3:%.*]] = getelementptr i64, i64* [[PS]], i64 3
; CHECK-NEXT: store i64 [[NWSP6]], i64* [[PS3]], align 4
; CHECK-NEXT: ret void
@ -310,20 +335,20 @@ define void @call_strtoull(i64* %ps) {
; Do not fold the result of conversion that overflows uint64_t. This
; could be folded into a constant provided errnor were set to ERANGE.
%psui64maxp1 = getelementptr [22 x i8], [22 x i8]* @ui64max_p1, i32 0, i32 0
%maxp1 = call i64 @strtoull(i8* %psui64maxp1, i8** null, i32 10)
%maxp1 = call i64 @strtoull(i8* %psui64maxp1, i8** @endptr, i32 10)
%ps1 = getelementptr i64, i64* %ps, i32 1
store i64 %maxp1, i64* %ps1
; Do not fold a sequence consisting of just whitespace characters.
%psws = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 0
%nws = call i64 @strtoull(i8* %psws, i8** null, i32 10)
%nws = call i64 @strtoull(i8* %psws, i8** @endptr, i32 10)
%ps2 = getelementptr i64, i64* %ps, i32 2
store i64 %nws, i64* %ps2
; Do not fold an empty sequence. The library call may or may not end up
; storing EINVAL in errno.
%pswsp6 = getelementptr [7 x i8], [7 x i8]* @ws, i32 0, i32 6
%nwsp6 = call i64 @strtoull(i8* %pswsp6, i8** null, i32 10)
%nwsp6 = call i64 @strtoull(i8* %pswsp6, i8** @endptr, i32 10)
%ps3 = getelementptr i64, i64* %ps, i32 3
store i64 %nwsp6, i64* %ps3