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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2019-05-03 17:31:49 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2019-05-03 17:31:49 +0000 |
| commit | 46ec57e57605e92121d972438bff04bd694f74d5 (patch) | |
| tree | a008cf6c119b4c1f6ac2b5ce31bab576f0f14a60 /llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll | |
| parent | 30649ce09bd5ca5b3430819c3e257aefabf02cb8 (diff) | |
| download | bcm5719-llvm-46ec57e57605e92121d972438bff04bd694f74d5.tar.gz bcm5719-llvm-46ec57e57605e92121d972438bff04bd694f74d5.zip | |
Revert "[CodeGenPrepare] limit overflow intrinsic matching to a single basic block"
This reverts commit r359879, which introduced a compiler crash.
llvm-svn: 359908
Diffstat (limited to 'llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll')
| -rw-r--r-- | llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll b/llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll index 05389bfe8d0..dc638425355 100644 --- a/llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll +++ b/llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll @@ -14,10 +14,11 @@ define i1 @PR41004(i32 %x, i32 %y, i32 %t1) { ; CHECK-NEXT: br label [[SELECT_END]] ; CHECK: select.end: ; CHECK-NEXT: [[MUL:%.*]] = phi i32 [ [[REM]], [[SELECT_TRUE_SINK]] ], [ 0, [[ENTRY:%.*]] ] -; CHECK-NEXT: [[NEG:%.*]] = add i32 [[T1:%.*]], -1 -; CHECK-NEXT: [[ADD:%.*]] = add i32 [[NEG]], [[MUL]] -; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[T1]], 0 -; CHECK-NEXT: ret i1 [[TOBOOL]] +; CHECK-NEXT: [[TMP0:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[T1:%.*]], i32 1) +; CHECK-NEXT: [[MATH:%.*]] = extractvalue { i32, i1 } [[TMP0]], 0 +; CHECK-NEXT: [[OV:%.*]] = extractvalue { i32, i1 } [[TMP0]], 1 +; CHECK-NEXT: [[ADD:%.*]] = add i32 [[MATH]], [[MUL]] +; CHECK-NEXT: ret i1 [[OV]] ; entry: %rem = srem i32 %x, 2 |
