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| author | Guozhi Wei <carrot@google.com> | 2017-09-22 18:25:53 +0000 |
|---|---|---|
| committer | Guozhi Wei <carrot@google.com> | 2017-09-22 18:25:53 +0000 |
| commit | bce228ca427b52a9ac7657a49fa0a56de586e229 (patch) | |
| tree | 6e76f8c96e2acdbfdf0a301de6cf79a0ad2cceee /llvm/test | |
| parent | 0acf3434e7e9f1b1ab828ad8e2d1fcf3c537e6b1 (diff) | |
| download | bcm5719-llvm-bce228ca427b52a9ac7657a49fa0a56de586e229.tar.gz bcm5719-llvm-bce228ca427b52a9ac7657a49fa0a56de586e229.zip | |
[TargetTransformInfo] Handle intrinsic call in getInstructionLatency()
Usually an intrinsic is a simple target instruction, it should have a small latency. A real function call has much larger latency. So handle the intrinsic call in function getInstructionLatency().
Differential Revision: https://reviews.llvm.org/D38104
llvm-svn: 314003
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Analysis/CostModel/X86/costmodel.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/test/Analysis/CostModel/X86/costmodel.ll b/llvm/test/Analysis/CostModel/X86/costmodel.ll index d16cc27cb16..19e7128ff44 100644 --- a/llvm/test/Analysis/CostModel/X86/costmodel.ll +++ b/llvm/test/Analysis/CostModel/X86/costmodel.ll @@ -5,6 +5,8 @@ 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-S128" +declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) + define i64 @foo(i64 %arg) { ; LATENCY: cost of 0 {{.*}} alloca i32 @@ -39,6 +41,10 @@ define i64 @foo(i64 %arg) { ; CODESIZE: cost of 0 {{.*}} trunc %TC = trunc i64 undef to i32 + ; LATENCY: cost of 1 {{.*}} call + ; CODESIZE: cost of 1 {{.*}} call + %uadd = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 undef, i32 undef) + ; LATENCY: cost of 1 {{.*}} ret ; CODESIZE: cost of 1 {{.*}} ret ret i64 undef |
