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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2014-02-04 20:27:23 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2014-02-04 20:27:23 +0000 |
| commit | fb0ad6bd15076f0837bfe559c552b96fd4d9ec44 (patch) | |
| tree | 4709539b0760407a96053b1a1d07cdfa47f15c3d /test/Transforms | |
| parent | 767a3dca4c66dffc88c71cd8586679b1c55f22a8 (diff) | |
| download | llvm-fb0ad6bd15076f0837bfe559c552b96fd4d9ec44.tar.gz llvm-fb0ad6bd15076f0837bfe559c552b96fd4d9ec44.tar.bz2 llvm-fb0ad6bd15076f0837bfe559c552b96fd4d9ec44.tar.xz | |
SimplifyLibCalls: Push TLI through the exp2->ldexp transform.
For the odd case of platforms with exp2 available but not ldexp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200795 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/exp2-1.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/exp2-1.ll b/test/Transforms/InstCombine/exp2-1.ll index 99fb9ecfd2..8e6a0e0d93 100644 --- a/test/Transforms/InstCombine/exp2-1.ll +++ b/test/Transforms/InstCombine/exp2-1.ll @@ -1,6 +1,7 @@ ; Test that the exp2 library call simplifier works correctly. ; ; RUN: opt < %s -instcombine -S | FileCheck %s +; RUN: opt < %s -instcombine -S -mtriple=i386-pc-win32 | FileCheck %s -check-prefix=CHECK-WIN target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" @@ -74,3 +75,26 @@ define float @test_simplify8(i8 zeroext %x) { ; CHECK: call float @ldexpf ret float %ret } + +declare double @llvm.exp2.f64(double) +declare float @llvm.exp2.f32(float) + +define double @test_simplify9(i8 zeroext %x) { +; CHECK-LABEL: @test_simplify9( +; CHECK-WIN-LABEL: @test_simplify9( + %conv = uitofp i8 %x to double + %ret = call double @llvm.exp2.f64(double %conv) +; CHECK: call double @ldexp +; CHECK-WIN: call double @ldexp + ret double %ret +} + +define float @test_simplify10(i8 zeroext %x) { +; CHECK-LABEL: @test_simplify10( +; CHECK-WIN-LABEL: @test_simplify10( + %conv = uitofp i8 %x to float + %ret = call float @llvm.exp2.f32(float %conv) +; CHECK: call float @ldexpf +; CHECK-WIN-NOT: call float @ldexpf + ret float %ret +} |