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[CGP] auto-generate complete checks for add overflow tests; NFC 

llvm-svn: 352437
This commit is contained in:
Sanjay Patel 2019-01-28 22:07:37 +00:00
parent 96b3d2094f
commit a36a293a56
1 changed files with 50 additions and 24 deletions
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66
llvm/test/Transforms/CodeGenPrepare/overflow-intrinsics.ll
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@ -4,45 +4,61 @@
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-darwin10.0.0"
; CHECK-LABEL: @test1(
; CHECK: llvm.uadd.with.overflow
; CHECK: ret i64
define i64 @test1(i64 %a, i64 %b) nounwind ssp {
entry:
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
; CHECK-NEXT: [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %a
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
; CHECK-LABEL: @test2(
; CHECK: llvm.uadd.with.overflow
; CHECK: ret i64
define i64 @test2(i64 %a, i64 %b) nounwind ssp {
entry:
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
; CHECK-NEXT: [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ult i64 %add, %b
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
; CHECK-LABEL: @test3(
; CHECK: llvm.uadd.with.overflow
; CHECK: ret i64
define i64 @test3(i64 %a, i64 %b) nounwind ssp {
entry:
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
; CHECK-NEXT: [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
;
%add = add i64 %b, %a
%cmp = icmp ugt i64 %b, %add
%Q = select i1 %cmp, i64 %b, i64 42
ret i64 %Q
}
; CHECK-LABEL: @test4(
; CHECK: llvm.uadd.with.overflow
; CHECK: extractvalue
; CHECK: extractvalue
; CHECK: select
define i64 @test4(i64 %a, i64 %b, i1 %c) nounwind ssp {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[NEXT:%.*]], label [[EXIT:%.*]]
; CHECK: next:
; CHECK-NEXT: [[UADD_OVERFLOW:%.*]] = call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 [[B:%.*]], i64 [[A:%.*]])
; CHECK-NEXT: [[UADD:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 0
; CHECK-NEXT: [[OVERFLOW:%.*]] = extractvalue { i64, i1 } [[UADD_OVERFLOW]], 1
; CHECK-NEXT: [[Q:%.*]] = select i1 [[OVERFLOW]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
; CHECK: exit:
; CHECK-NEXT: ret i64 0
;
entry:
%add = add i64 %b, %a
%cmp = icmp ugt i64 %b, %add
@ -56,10 +72,19 @@ entry:
ret i64 0
}
; CHECK-LABEL: @test5(
; CHECK-NOT: llvm.uadd.with.overflow
; CHECK: next
define i64 @test5(i64 %a, i64 %b, i64* %ptr, i1 %c) nounwind ssp {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ADD:%.*]] = add i64 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: store i64 [[ADD]], i64* [[PTR:%.*]]
; CHECK-NEXT: br i1 [[C:%.*]], label [[NEXT:%.*]], label [[EXIT:%.*]]
; CHECK: next:
; CHECK-NEXT: [[TMP0:%.*]] = icmp ugt i64 [[B]], [[ADD]]
; CHECK-NEXT: [[Q:%.*]] = select i1 [[TMP0]], i64 [[B]], i64 42
; CHECK-NEXT: ret i64 [[Q]]
; CHECK: exit:
; CHECK-NEXT: ret i64 0
;
entry:
%add = add i64 %b, %a
store i64 %add, i64* %ptr
@ -76,3 +101,4 @@ entry:
; Check that every instruction inserted by -codegenprepare has a debug location.
; DEBUG: CheckModuleDebugify: PASS