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| author | Evan Cheng <evan.cheng@apple.com> | 2011-01-06 06:52:41 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-01-06 06:52:41 +0000 |
| commit | 0521928ae7cc492f3f45ef0e0cedc349102489c5 (patch) | |
| tree | 63104f8e294ba270af96ea031e8143dea969dfcc /test/CodeGen/X86/memcpy.ll | |
| parent | 8cd4efb6a5e51b4e77039c17338f290ca3a8ee92 (diff) | |
| download | llvm-0521928ae7cc492f3f45ef0e0cedc349102489c5.tar.gz llvm-0521928ae7cc492f3f45ef0e0cedc349102489c5.tar.bz2 llvm-0521928ae7cc492f3f45ef0e0cedc349102489c5.tar.xz | |
Re-implement r122936 with proper target hooks. Now getMaxStoresPerMemcpy
etc. takes an option OptSize. If OptSize is true, it would return
the inline limit for functions with attribute OptSize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122952 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/memcpy.ll')
| -rw-r--r-- | test/CodeGen/X86/memcpy.ll | 64 |
1 files changed, 44 insertions, 20 deletions
diff --git a/test/CodeGen/X86/memcpy.ll b/test/CodeGen/X86/memcpy.ll index 7bc31bec16..72342cbacb 100644 --- a/test/CodeGen/X86/memcpy.ll +++ b/test/CodeGen/X86/memcpy.ll @@ -1,4 +1,5 @@ -; RUN: llc < %s -march=x86-64 | FileCheck %s +; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s -check-prefix=LINUX +; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s -check-prefix=DARWIN declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind @@ -9,8 +10,8 @@ entry: tail call void @llvm.memcpy.p0i8.p0i8.i64( i8* %a, i8* %b, i64 %n, i32 1, i1 0 ) ret i8* %a -; CHECK: test1: -; CHECK: memcpy +; LINUX: test1: +; LINUX: memcpy } ; Variable memcpy's should lower to calls. @@ -21,18 +22,41 @@ entry: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp14, i8* %tmp25, i64 %n, i32 8, i1 0 ) ret i8* %tmp14 -; CHECK: test2: -; CHECK: memcpy +; LINUX: test2: +; LINUX: memcpy } ; Large constant memcpy's should lower to a call when optimizing for size. ; PR6623 + +; On the other hand, Darwin's definition of -Os is optimizing for size without +; hurting performance so it should just ignore optsize when expanding memcpy. +; rdar://8821501 define void @test3(i8* nocapture %A, i8* nocapture %B) nounwind optsize noredzone { entry: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 64, i32 1, i1 false) ret void -; CHECK: test3: -; CHECK: memcpy +; LINUX: test3: +; LINUX: memcpy + +; DARWIN: test3: +; DARWIN-NOT: memcpy +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq +; DARWIN: movq } ; Large constant memcpy's should be inlined when not optimizing for size. @@ -40,18 +64,18 @@ define void @test4(i8* nocapture %A, i8* nocapture %B) nounwind noredzone { entry: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %A, i8* %B, i64 64, i32 1, i1 false) ret void -; CHECK: test4: -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq -; CHECK: movq +; LINUX: test4: +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq +; LINUX movq } |