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| author | Sanjay Patel <spatel@rotateright.com> | 2016-08-29 15:27:17 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-08-29 15:27:17 +0000 |
| commit | 25475bcc0c3e656d7e03dcc483e12601033f55a0 (patch) | |
| tree | 68ccfa8c6bef12f0c310f0b93ffc51f9babdf7da /llvm/test | |
| parent | 20f02b271b30f266b3f84a0a366408c8e0a129d4 (diff) | |
| download | bcm5719-llvm-25475bcc0c3e656d7e03dcc483e12601033f55a0.tar.gz bcm5719-llvm-25475bcc0c3e656d7e03dcc483e12601033f55a0.zip | |
[Constant] remove fdiv and frem from canTrap()
Assuming the default FP env, we should not treat fdiv and frem any differently in terms of
trapping behavior than any other FP op. Ie, FP ops do not trap with the default FP env.
This matches how we treat the fdiv/frem in IR with isSafeToSpeculativelyExecute() and in
the backend after:
https://reviews.llvm.org/rL279970
llvm-svn: 279973
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll b/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll index 029cda3bbc6..13cd8e5ad63 100644 --- a/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll +++ b/llvm/test/Transforms/SimplifyCFG/ConditionalTrappingConstantExpr.ll @@ -48,16 +48,13 @@ bb7: ret i32 927 } -; FIXME: FP ops don't trap by default, so this is safe to hoist. +; FP ops don't trap by default, so this is safe to hoist. define i32 @tarp(i1 %c) { ; CHECK-LABEL: @tarp( -; CHECK-NEXT: br i1 %c, label %bb8, label %bb9 -; CHECK: bb8: +; CHECK-NEXT: bb9: ; CHECK-NEXT: [[DOT:%.*]] = select i1 fcmp oeq (float fdiv (float 3.000000e+00, float sitofp (i32 ptrtoint (i32* @G to i32) to float)), float 1.000000e+00), i32 42, i32 927 -; CHECK-NEXT: br label %bb9 -; CHECK: bb9: -; CHECK-NEXT: [[MERGE:%.*]] = phi i32 [ 42, %0 ], [ [[DOT]], %bb8 ] +; CHECK-NEXT: [[MERGE:%.*]] = select i1 %c, i32 [[DOT]], i32 42 ; CHECK-NEXT: ret i32 [[MERGE]] ; br i1 %c, label %bb8, label %bb9 |
