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| author | Ivan Krasin <krasin@chromium.org> | 2011-08-18 22:06:10 +0000 |
|---|---|---|
| committer | Ivan Krasin <krasin@chromium.org> | 2011-08-18 22:06:10 +0000 |
| commit | d7cbd4c518a38594b12c6d1c9b0c7e8eed1c40c7 (patch) | |
| tree | ddda557b51d3591c9806fc8fd516ad48d567ea40 /llvm/test/CodeGen/X86/fast-isel-x86-64.ll | |
| parent | f6cb9bcf557dd5638e05d6fe36e944159f7bb720 (diff) | |
| download | bcm5719-llvm-d7cbd4c518a38594b12c6d1c9b0c7e8eed1c40c7.tar.gz bcm5719-llvm-d7cbd4c518a38594b12c6d1c9b0c7e8eed1c40c7.zip | |
FastISel: avoid function calls between the materialization of the constant and its use.
llvm-svn: 137993
Diffstat (limited to 'llvm/test/CodeGen/X86/fast-isel-x86-64.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/fast-isel-x86-64.ll | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/X86/fast-isel-x86-64.ll b/llvm/test/CodeGen/X86/fast-isel-x86-64.ll index c4afc10ffab..6a5a10295fb 100644 --- a/llvm/test/CodeGen/X86/fast-isel-x86-64.ll +++ b/llvm/test/CodeGen/X86/fast-isel-x86-64.ll @@ -259,4 +259,27 @@ define void @test21(double* %p1) { ; CHECK: test21: ; CHECK-NOT: pxor ; CHECK: movsd LCPI -}
\ No newline at end of file +} + +; Check that immediate arguments to a function +; do not cause massive spilling and are used +; as immediates just before the call. +define void @test22() nounwind { +entry: + call void @foo22(i32 0) + call void @foo22(i32 1) + call void @foo22(i32 2) + call void @foo22(i32 3) + ret void +; CHECK: test22: +; CHECK: movl $0, %edi +; CHECK: callq _foo22 +; CHECK: movl $1, %edi +; CHECK: callq _foo22 +; CHECK: movl $2, %edi +; CHECK: callq _foo22 +; CHECK: movl $3, %edi +; CHECK: callq _foo22 +} + +declare void @foo22(i32) |
