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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-04 00:16:04 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-04 00:16:04 +0000 |
| commit | 88d11c3a214da464deb05eb17922d633e5af77a1 (patch) | |
| tree | dcc016454a3e8332b8d9f3e22e331a4ab0073158 /test/CodeGen/X86/twoaddr-coalesce.ll | |
| parent | 723be602ecdfde30a50c3afe1780575fdf8f0f56 (diff) | |
| download | external_llvm-88d11c3a214da464deb05eb17922d633e5af77a1.zip external_llvm-88d11c3a214da464deb05eb17922d633e5af77a1.tar.gz external_llvm-88d11c3a214da464deb05eb17922d633e5af77a1.tar.bz2 | |
Also attempt trivial coalescing for live intervals that end in a copy.
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90502 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/twoaddr-coalesce.ll')
| -rw-r--r-- | test/CodeGen/X86/twoaddr-coalesce.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/CodeGen/X86/twoaddr-coalesce.ll b/test/CodeGen/X86/twoaddr-coalesce.ll index d0e13f6..4c37225 100644 --- a/test/CodeGen/X86/twoaddr-coalesce.ll +++ b/test/CodeGen/X86/twoaddr-coalesce.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=x86 | grep mov | count 5 +; RUN: llc < %s -march=x86 | grep mov | count 4 ; rdar://6523745 @"\01LC" = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1] |