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llvm-project/llvm/test/Transforms/CorrelatedValuePropagation/overflows.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -correlated-propagation < %s | FileCheck %s
; Check that debug locations are preserved. For more info see:
; https://llvm.org/docs/SourceLevelDebugging.html#fixing-errors
; RUN: opt < %s -enable-debugify -correlated-propagation -S 2>&1 | \
; RUN: FileCheck %s -check-prefix=DEBUG
; DEBUG: CheckModuleDebugify: PASS
declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32)
declare { i32, i1 } @llvm.umul.with.overflow.i32(i32, i32)
declare { i8, i1 } @llvm.umul.with.overflow.i8(i8, i8)
declare { <2 x i32>, <2 x i1> } @llvm.uadd.with.overflow.v2i32(<2 x i32>, <2 x i32>)
declare i8 @llvm.uadd.sat.i8(i8, i8)
declare i8 @llvm.sadd.sat.i8(i8, i8)
declare i8 @llvm.usub.sat.i8(i8, i8)
declare i8 @llvm.ssub.sat.i8(i8, i8)
declare <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8>, <2 x i8>)
declare void @llvm.trap()
define i32 @signed_add(i32 %x, i32 %y) {
; CHECK-LABEL: @signed_add(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[Y:%.*]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[LAND_LHS_TRUE:%.*]], label [[LOR_LHS_FALSE:%.*]]
; CHECK: land.lhs.true:
; CHECK-NEXT: [[TMP0:%.*]] = sub nuw nsw i32 2147483647, [[Y]]
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp slt i32 [[TMP3]], [[X:%.*]]
; CHECK-NEXT: br i1 [[CMP1]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: lor.lhs.false:
; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[Y]], 0
; CHECK-NEXT: br i1 [[CMP2]], label [[LAND_LHS_TRUE3:%.*]], label [[COND_FALSE]]
; CHECK: land.lhs.true3:
; CHECK-NEXT: [[TMP4:%.*]] = sub nsw i32 -2147483648, [[Y]]
; CHECK-NEXT: [[TMP5:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP4]], 0
; CHECK-NEXT: [[TMP6:%.*]] = extractvalue { i32, i1 } [[TMP5]], 1
; CHECK-NEXT: br i1 [[TMP6]], label [[TRAP]], label [[CONT4:%.*]]
; CHECK: cont4:
; CHECK-NEXT: [[TMP7:%.*]] = extractvalue { i32, i1 } [[TMP5]], 0
; CHECK-NEXT: [[CMP5:%.*]] = icmp sgt i32 [[TMP7]], [[X]]
; CHECK-NEXT: br i1 [[CMP5]], label [[COND_END]], label [[COND_FALSE]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP8:%.*]] = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[X]], i32 [[Y]])
; CHECK-NEXT: [[TMP9:%.*]] = extractvalue { i32, i1 } [[TMP8]], 0
; CHECK-NEXT: [[TMP10:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
; CHECK-NEXT: br i1 [[TMP10]], label [[TRAP]], label [[COND_END]]
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[CONT4]] ], [ 0, [[CONT]] ], [ [[TMP9]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp sgt i32 %y, 0
br i1 %cmp, label %land.lhs.true, label %lor.lhs.false
land.lhs.true: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 2147483647, i32 %y)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %land.lhs.true, %land.lhs.true3, %cond.false
tail call void @llvm.trap()
unreachable
cont: ; preds = %land.lhs.true
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp slt i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
lor.lhs.false: ; preds = %entry
%cmp2 = icmp slt i32 %y, 0
br i1 %cmp2, label %land.lhs.true3, label %cond.false
land.lhs.true3: ; preds = %lor.lhs.false
%3 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 -2147483648, i32 %y)
%4 = extractvalue { i32, i1 } %3, 1
br i1 %4, label %trap, label %cont4
cont4: ; preds = %land.lhs.true3
%5 = extractvalue { i32, i1 } %3, 0
%cmp5 = icmp sgt i32 %5, %x
br i1 %cmp5, label %cond.end, label %cond.false
cond.false: ; preds = %cont, %cont4, %lor.lhs.false
%6 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 %y)
%7 = extractvalue { i32, i1 } %6, 0
%8 = extractvalue { i32, i1 } %6, 1
br i1 %8, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont, %cont4
%cond = phi i32 [ 0, %cont4 ], [ 0, %cont ], [ %7, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_add(i32 %x, i32 %y) {
; CHECK-LABEL: @unsigned_add(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = sub nuw nsw i32 -1, [[Y:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[TMP3]], [[X:%.*]]
; CHECK-NEXT: br i1 [[CMP1]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP4:%.*]] = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[X]], i32 [[Y]])
; CHECK-NEXT: [[TMP5:%.*]] = extractvalue { i32, i1 } [[TMP4]], 0
; CHECK-NEXT: [[TMP6:%.*]] = extractvalue { i32, i1 } [[TMP4]], 1
; CHECK-NEXT: br i1 [[TMP6]], label [[TRAP]], label [[COND_END]]
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[CONT]] ], [ [[TMP5]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 -1, i32 %y)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %cond.false, %entry
tail call void @llvm.trap()
unreachable
cont: ; preds = %entry
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp ult i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
cond.false: ; preds = %cont
%3 = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
%4 = extractvalue { i32, i1 } %3, 0
%5 = extractvalue { i32, i1 } %3, 1
br i1 %5, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont
%cond = phi i32 [ 0, %cont ], [ %4, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub(i32 %x, i32 %y) {
; CHECK-LABEL: @signed_sub(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[Y:%.*]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[LAND_LHS_TRUE:%.*]], label [[LOR_LHS_FALSE:%.*]]
; CHECK: land.lhs.true:
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i32 [[Y]], 2147483647
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[CMP1:%.*]] = icmp slt i32 [[TMP3]], [[X:%.*]]
; CHECK-NEXT: br i1 [[CMP1]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: lor.lhs.false:
; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i32 [[Y]], 0
; CHECK-NEXT: br i1 [[CMP2]], label [[COND_FALSE]], label [[LAND_LHS_TRUE3:%.*]]
; CHECK: land.lhs.true3:
; CHECK-NEXT: [[TMP4:%.*]] = add nuw nsw i32 [[Y]], -2147483648
; CHECK-NEXT: [[TMP5:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP4]], 0
; CHECK-NEXT: [[TMP6:%.*]] = extractvalue { i32, i1 } [[TMP5]], 1
; CHECK-NEXT: br i1 [[TMP6]], label [[TRAP]], label [[CONT4:%.*]]
; CHECK: cont4:
; CHECK-NEXT: [[TMP7:%.*]] = extractvalue { i32, i1 } [[TMP5]], 0
; CHECK-NEXT: [[CMP5:%.*]] = icmp sgt i32 [[TMP7]], [[X]]
; CHECK-NEXT: br i1 [[CMP5]], label [[COND_END]], label [[COND_FALSE]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP8:%.*]] = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 [[X]], i32 [[Y]])
; CHECK-NEXT: [[TMP9:%.*]] = extractvalue { i32, i1 } [[TMP8]], 0
; CHECK-NEXT: [[TMP10:%.*]] = extractvalue { i32, i1 } [[TMP8]], 1
; CHECK-NEXT: br i1 [[TMP10]], label [[TRAP]], label [[COND_END]]
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[CONT4]] ], [ 0, [[CONT]] ], [ [[TMP9]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp slt i32 %y, 0
br i1 %cmp, label %land.lhs.true, label %lor.lhs.false
land.lhs.true: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 2147483647)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %land.lhs.true, %land.lhs.true3, %cond.false
tail call void @llvm.trap()
unreachable
cont: ; preds = %land.lhs.true
%2 = extractvalue { i32, i1 } %0, 0
%cmp1 = icmp slt i32 %2, %x
br i1 %cmp1, label %cond.end, label %cond.false
lor.lhs.false: ; preds = %entry
%cmp2 = icmp eq i32 %y, 0
br i1 %cmp2, label %cond.false, label %land.lhs.true3
land.lhs.true3: ; preds = %lor.lhs.false
%3 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 -2147483648)
%4 = extractvalue { i32, i1 } %3, 1
br i1 %4, label %trap, label %cont4
cont4: ; preds = %land.lhs.true3
%5 = extractvalue { i32, i1 } %3, 0
%cmp5 = icmp sgt i32 %5, %x
br i1 %cmp5, label %cond.end, label %cond.false
cond.false: ; preds = %lor.lhs.false, %cont, %cont4
%6 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 %y)
%7 = extractvalue { i32, i1 } %6, 0
%8 = extractvalue { i32, i1 } %6, 1
br i1 %8, label %trap, label %cond.end
cond.end: ; preds = %cond.false, %cont, %cont4
%cond = phi i32 [ 0, %cont4 ], [ 0, %cont ], [ %7, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_sub(i32 %x, i32 %y) {
; CHECK-LABEL: @unsigned_sub(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[X]], i32 [[Y]])
; CHECK-NEXT: [[TMP1:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP0]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP1]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp ult i32 %x, %y
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %x, i32 %y)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_add_r1(i32 %x) {
; CHECK-LABEL: @signed_add_r1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 2147483647
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i32 [[X]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, 2147483647
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_add_r1(i32 %x) {
; CHECK-LABEL: @unsigned_add_r1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], -1
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = add nuw i32 [[X]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, -1
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub_r1(i32 %x) {
; CHECK-LABEL: @signed_sub_r1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], -2147483648
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = sub nsw i32 [[X]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, -2147483648
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_sub_r1(i32 %x) {
; CHECK-LABEL: @unsigned_sub_r1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = sub nuw i32 [[X]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, 0
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %x, i32 1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_add_rn1(i32 %x) {
; CHECK-LABEL: @signed_add_rn1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], -2147483648
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i32 [[X]], -1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, -2147483648
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 -1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @signed_sub_rn1(i32 %x) {
; CHECK-LABEL: @signed_sub_rn1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 2147483647
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[TMP0:%.*]] = sub nsw i32 [[X]], -1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP3]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[TMP2]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp eq i32 %x, 2147483647
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%0 = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %x, i32 -1)
%1 = extractvalue { i32, i1 } %0, 0
%2 = extractvalue { i32, i1 } %0, 1
br i1 %2, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %1, %cond.false ]
ret i32 %cond
}
define i32 @unsigned_mul(i32 %x) {
; CHECK-LABEL: @unsigned_mul(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[X:%.*]], 10000
; CHECK-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[MULO1:%.*]] = mul nuw nsw i32 [[X]], 100
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[MULO1]], 0
; CHECK-NEXT: [[RES:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i32, i1 } [[TMP0]], 1
; CHECK-NEXT: br i1 [[OV]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[RES]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp = icmp ugt i32 %x, 10000
br i1 %cmp, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%mulo = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %x, i32 100)
%res = extractvalue { i32, i1 } %mulo, 0
%ov = extractvalue { i32, i1 } %mulo, 1
br i1 %ov, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %res, %cond.false ]
ret i32 %cond
}
define i32 @signed_mul(i32 %x) {
; CHECK-LABEL: @signed_mul(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[X:%.*]], 10000
; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[X]], -10000
; CHECK-NEXT: [[CMP3:%.*]] = or i1 [[CMP1]], [[CMP2]]
; CHECK-NEXT: br i1 [[CMP3]], label [[COND_END:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond.false:
; CHECK-NEXT: [[MULO1:%.*]] = mul nsw i32 [[X]], 100
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[MULO1]], 0
; CHECK-NEXT: [[RES:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: [[OV:%.*]] = extractvalue { i32, i1 } [[TMP0]], 1
; CHECK-NEXT: br i1 [[OV]], label [[TRAP:%.*]], label [[COND_END]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: [[COND:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[RES]], [[COND_FALSE]] ]
; CHECK-NEXT: ret i32 [[COND]]
;
entry:
%cmp1 = icmp sgt i32 %x, 10000
%cmp2 = icmp slt i32 %x, -10000
%cmp3 = or i1 %cmp1, %cmp2
br i1 %cmp3, label %cond.end, label %cond.false
cond.false: ; preds = %entry
%mulo = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %x, i32 100)
%res = extractvalue { i32, i1 } %mulo, 0
%ov = extractvalue { i32, i1 } %mulo, 1
br i1 %ov, label %trap, label %cond.end
trap: ; preds = %cond.false
tail call void @llvm.trap()
unreachable
cond.end: ; preds = %cond.false, %entry
%cond = phi i32 [ 0, %entry ], [ %res, %cond.false ]
ret i32 %cond
}
declare i32 @bar(i32)
define void @unsigned_loop(i32 %i) {
; CHECK-LABEL: @unsigned_loop(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i32 [[I:%.*]], 0
; CHECK-NEXT: br i1 [[CMP3]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]]
; CHECK: while.body.preheader:
; CHECK-NEXT: br label [[WHILE_BODY:%.*]]
; CHECK: while.body:
; CHECK-NEXT: [[I_ADDR_04:%.*]] = phi i32 [ [[TMP3:%.*]], [[CONT:%.*]] ], [ [[I]], [[WHILE_BODY_PREHEADER]] ]
; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @bar(i32 [[I_ADDR_04]])
; CHECK-NEXT: [[TMP0:%.*]] = sub nuw i32 [[I_ADDR_04]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[CONT]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[TMP3]] = extractvalue { i32, i1 } [[TMP1]], 0
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[TMP3]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[WHILE_END]], label [[WHILE_BODY]]
; CHECK: while.end:
; CHECK-NEXT: ret void
;
entry:
%cmp3 = icmp eq i32 %i, 0
br i1 %cmp3, label %while.end, label %while.body.preheader
while.body.preheader: ; preds = %entry
br label %while.body
while.body: ; preds = %while.body.preheader, %cont
%i.addr.04 = phi i32 [ %2, %cont ], [ %i, %while.body.preheader ]
%call = tail call i32 @bar(i32 %i.addr.04)
%0 = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %i.addr.04, i32 1)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %while.body
tail call void @llvm.trap()
unreachable
cont: ; preds = %while.body
%2 = extractvalue { i32, i1 } %0, 0
%cmp = icmp eq i32 %2, 0
br i1 %cmp, label %while.end, label %while.body
while.end: ; preds = %cont, %entry
ret void
}
define void @intrinsic_into_phi(i32 %n) {
; CHECK-LABEL: @intrinsic_into_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[CONT:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i32 [[DOTLCSSA:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[TMP0]], 0
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: br i1 [[TMP2]], label [[TRAP:%.*]], label [[CONT]]
; CHECK: trap:
; CHECK-NEXT: tail call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[TMP3:%.*]] = phi { i32, i1 } [ zeroinitializer, [[ENTRY:%.*]] ], [ [[TMP1]], [[FOR_COND:%.*]] ]
; CHECK-NEXT: [[TMP4:%.*]] = extractvalue { i32, i1 } [[TMP3]], 0
; CHECK-NEXT: [[CALL9:%.*]] = tail call i32 @bar(i32 [[TMP4]])
; CHECK-NEXT: [[TOBOOL10:%.*]] = icmp eq i32 [[CALL9]], 0
; CHECK-NEXT: br i1 [[TOBOOL10]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]]
; CHECK: while.body.preheader:
; CHECK-NEXT: br label [[WHILE_BODY:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[TMP5:%.*]] = extractvalue { i32, i1 } [[TMP7:%.*]], 0
; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @bar(i32 [[TMP5]])
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[CALL]], 0
; CHECK-NEXT: br i1 [[TOBOOL]], label [[WHILE_END]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[TMP6:%.*]] = phi i32 [ [[TMP5]], [[WHILE_COND:%.*]] ], [ [[TMP4]], [[WHILE_BODY_PREHEADER]] ]
; CHECK-NEXT: [[TMP7]] = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[TMP6]], i32 1)
; CHECK-NEXT: [[TMP8:%.*]] = extractvalue { i32, i1 } [[TMP7]], 1
; CHECK-NEXT: br i1 [[TMP8]], label [[TRAP]], label [[WHILE_COND]]
; CHECK: while.end:
; CHECK-NEXT: [[DOTLCSSA]] = phi i32 [ [[TMP4]], [[CONT]] ], [ [[TMP5]], [[WHILE_COND]] ]
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[DOTLCSSA]], [[N:%.*]]
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_COND]], label [[CLEANUP2:%.*]]
; CHECK: cleanup2:
; CHECK-NEXT: ret void
;
entry:
br label %cont
for.cond: ; preds = %while.end
%0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %.lcssa, i32 1)
%1 = extractvalue { i32, i1 } %0, 1
br i1 %1, label %trap, label %cont
trap: ; preds = %for.cond, %while.body
tail call void @llvm.trap()
unreachable
cont: ; preds = %entry, %for.cond
%2 = phi { i32, i1 } [ zeroinitializer, %entry ], [ %0, %for.cond ]
%3 = extractvalue { i32, i1 } %2, 0
%call9 = tail call i32 @bar(i32 %3)
%tobool10 = icmp eq i32 %call9, 0
br i1 %tobool10, label %while.end, label %while.body.preheader
while.body.preheader: ; preds = %cont
br label %while.body
while.cond: ; preds = %while.body
%4 = extractvalue { i32, i1 } %6, 0
%call = tail call i32 @bar(i32 %4)
%tobool = icmp eq i32 %call, 0
br i1 %tobool, label %while.end, label %while.body
while.body: ; preds = %while.body.preheader, %while.cond
%5 = phi i32 [ %4, %while.cond ], [ %3, %while.body.preheader ]
%6 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %5, i32 1)
%7 = extractvalue { i32, i1 } %6, 1
br i1 %7, label %trap, label %while.cond
while.end: ; preds = %while.cond, %cont
%.lcssa = phi i32 [ %3, %cont ], [ %4, %while.cond ]
%cmp = icmp slt i32 %.lcssa, %n
br i1 %cmp, label %for.cond, label %cleanup2
cleanup2: ; preds = %while.end
ret void
}
define { i8, i1 } @signed_mul_constant_folding() {
; CHECK-LABEL: @signed_mul_constant_folding(
; CHECK-NEXT: ret { i8, i1 } { i8 2, i1 false }
;
%mul = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 1, i8 2)
ret { i8, i1 } %mul
}
define { <2 x i32>, <2 x i1> } @uaddo_vec(<2 x i32> %a) {
; CHECK-LABEL: @uaddo_vec(
; CHECK-NEXT: [[ADD:%.*]] = call { <2 x i32>, <2 x i1> } @llvm.uadd.with.overflow.v2i32(<2 x i32> [[A:%.*]], <2 x i32> <i32 1, i32 1>)
; CHECK-NEXT: ret { <2 x i32>, <2 x i1> } [[ADD]]
;
%add = call { <2 x i32>, <2 x i1> } @llvm.uadd.with.overflow.v2i32(<2 x i32> %a, <2 x i32> <i32 1, i32 1>)
ret { <2 x i32>, <2 x i1> } %add
}
define i8 @uadd_sat_no_unsigned_overflow(i8 %x) {
; CHECK-LABEL: @uadd_sat_no_unsigned_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 100
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = add nuw i8 [[X]], 100
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ugt i8 %x, 100
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.uadd.sat.i8(i8 %x, i8 100)
ret i8 %res
}
define i8 @uadd_sat_no_overflow(i8 %x) {
; CHECK-LABEL: @uadd_sat_no_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 27
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = add nuw nsw i8 [[X]], 100
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ugt i8 %x, 27
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.uadd.sat.i8(i8 %x, i8 100)
ret i8 %res
}
define i8 @sadd_sat_no_signed_overflow(i8 %x) {
; CHECK-LABEL: @sadd_sat_no_signed_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], 100
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = add nsw i8 [[X]], 20
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp sgt i8 %x, 100
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.sadd.sat.i8(i8 %x, i8 20)
ret i8 %res
}
define i8 @sadd_sat_no_overflow(i8 %x) {
; CHECK-LABEL: @sadd_sat_no_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 107
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = add nuw nsw i8 [[X]], 20
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ugt i8 %x, 107
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.sadd.sat.i8(i8 %x, i8 20)
ret i8 %res
}
define i8 @usub_sat_no_unsigned_overflow(i8 %x) {
; CHECK-LABEL: @usub_sat_no_unsigned_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[X:%.*]], 100
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = sub nuw i8 [[X]], 100
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ult i8 %x, 100
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.usub.sat.i8(i8 %x, i8 100)
ret i8 %res
}
define i8 @usub_sat_no_overflow(i8 %x) {
; CHECK-LABEL: @usub_sat_no_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[X:%.*]], -28
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = sub nuw nsw i8 [[X]], 100
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ult i8 %x, 228
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.usub.sat.i8(i8 %x, i8 100)
ret i8 %res
}
define i8 @ssub_sat_no_signed_overflow(i8 %x) {
; CHECK-LABEL: @ssub_sat_no_signed_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[X:%.*]], -100
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = sub nsw i8 [[X]], 20
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp slt i8 %x, -100
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.ssub.sat.i8(i8 %x, i8 20)
ret i8 %res
}
define i8 @ssub_sat_no_overflow(i8 %x) {
; CHECK-LABEL: @ssub_sat_no_overflow(
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[X:%.*]], -108
; CHECK-NEXT: br i1 [[CMP]], label [[TRAP:%.*]], label [[CONT:%.*]]
; CHECK: trap:
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
; CHECK: cont:
; CHECK-NEXT: [[RES1:%.*]] = sub nuw nsw i8 [[X]], 20
; CHECK-NEXT: ret i8 [[RES1]]
;
%cmp = icmp ult i8 %x, 148
br i1 %cmp, label %trap, label %cont
trap:
call void @llvm.trap()
unreachable
cont:
%res = call i8 @llvm.ssub.sat.i8(i8 %x, i8 20)
ret i8 %res
}
define <2 x i8> @uadd_sat_vec(<2 x i8> %a) {
; CHECK-LABEL: @uadd_sat_vec(
; CHECK-NEXT: [[ADD:%.*]] = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> [[A:%.*]], <2 x i8> <i8 1, i8 1>)
; CHECK-NEXT: ret <2 x i8> [[ADD]]
;
%add = call <2 x i8> @llvm.uadd.sat.v2i8(<2 x i8> %a, <2 x i8> <i8 1, i8 1>)
ret <2 x i8> %add
}
; In the following tests, we should first simplify a with.overflow intrinsic
; to a simple arithmetic operation and insertvalue, but also simplify the
; subsequent comparison that is based on it.
define i1 @sadd_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @sadd_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[X_OFFSET:%.*]] = add i32 [[X:%.*]], 9
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X_OFFSET]], 19
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[Y_OFFSET:%.*]] = add i32 [[Y:%.*]], 9
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y_OFFSET]], 19
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[RES1:%.*]] = add nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%x.offset = add i32 %x, 9
%cmp1 = icmp ult i32 %x.offset, 19
br i1 %cmp1, label %cont1, label %out
cont1:
%y.offset = add i32 %y, 9
%cmp2 = icmp ult i32 %y.offset, 19
br i1 %cmp2, label %cont2, label %out
cont2:
; x = [-9,10), y = [-9,10)
%res = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 %y)
%add = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
; add = [-18,19)
%cmp3 = icmp slt i32 %add, 19
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
define i1 @uadd_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @uadd_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[RES1:%.*]] = add nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%res = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %x, i32 %y)
%add = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
%cmp3 = icmp ult i32 %add, 19
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
define i1 @ssub_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @ssub_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[OFFSET:%.*]] = add nuw nsw i32 [[X]], 9
; CHECK-NEXT: [[RES1:%.*]] = sub nuw nsw i32 [[OFFSET]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%offset = add i32 %x, 9
; x = [0,10), y = [0,10), offset = [9,19)
%res = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %offset, i32 %y)
%sub = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
%cmp3 = icmp ult i32 %sub, 19
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
define i1 @usub_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @usub_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[OFFSET:%.*]] = add nuw nsw i32 [[X]], 9
; CHECK-NEXT: [[RES1:%.*]] = sub nuw nsw i32 [[OFFSET]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%offset = add i32 %x, 9
; x = [0,10), y = [0,10), offset = [9,19)
%res = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %offset, i32 %y)
%sub = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
%cmp3 = icmp ult i32 %sub, 19
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
define i1 @smul_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @smul_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[X_OFFSET:%.*]] = add i32 [[X:%.*]], 9
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X_OFFSET]], 19
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[Y_OFFSET:%.*]] = add i32 [[Y:%.*]], 9
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y_OFFSET]], 19
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[RES1:%.*]] = mul nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%x.offset = add i32 %x, 9
%cmp1 = icmp ult i32 %x.offset, 19
br i1 %cmp1, label %cont1, label %out
cont1:
%y.offset = add i32 %y, 9
%cmp2 = icmp ult i32 %y.offset, 19
br i1 %cmp2, label %cont2, label %out
cont2:
; x = [-9,10), y = [-9,10)
%res = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %x, i32 %y)
%mul = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
%cmp3 = icmp sle i32 %mul, 81
%cmp4 = icmp sge i32 %mul, -81
%cmp5 = and i1 %cmp3, %cmp4
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp5, %cont3 ]
ret i1 %ret
}
define i1 @umul_and_cmp(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @umul_and_cmp(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 100
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 100
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[RES1:%.*]] = mul nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: [[TMP0:%.*]] = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 [[RES1]], 0
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 100
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 100
br i1 %cmp2, label %cont2, label %out
cont2:
%res = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %x, i32 %y)
%mul = extractvalue { i32, i1 } %res, 0
br label %cont3
cont3:
%cmp3 = icmp ule i32 %mul, 9801
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
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