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| author | Dan Gohman <djg@cray.com> | 2007-08-02 14:27:55 +0000 |
|---|---|---|
| committer | Dan Gohman <djg@cray.com> | 2007-08-02 14:27:55 +0000 |
| commit | ca9f99dfaead1bafc110b4e4caf4b6354a4b4cf4 (patch) | |
| tree | abb95af84fd9482c5fa26c59d2a057e7b24f412b /test/CodeGen | |
| parent | ef70bb8740a003ef0305fc1b37df90aa0147df6f (diff) | |
| download | external_llvm-ca9f99dfaead1bafc110b4e4caf4b6354a4b4cf4.zip external_llvm-ca9f99dfaead1bafc110b4e4caf4b6354a4b4cf4.tar.gz external_llvm-ca9f99dfaead1bafc110b4e4caf4b6354a4b4cf4.tar.bz2 | |
Mark the SSE and MMX load instructions that
X86InstrInfo::isReallyTriviallyReMaterializable knows how to handle
with the isReMaterializable flag so that it is given a chance to handle
them. Without hoisting constant-pool loads from loops this isn't very
visible, though it does keep CodeGen/X86/constant-pool-remat-0.ll from
making a copy of the constant pool on the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40736 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/constant-pool-remat-0.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/constant-pool-remat-0.ll b/test/CodeGen/X86/constant-pool-remat-0.ll new file mode 100644 index 0000000..d5af99e --- /dev/null +++ b/test/CodeGen/X86/constant-pool-remat-0.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | llc -march=x86-64 | grep LCPI | wc -l | grep 3 + +declare float @qux(float %y) + +define float @array(float %a) { + %n = mul float %a, 9.0 + %m = call float @qux(float %n) + %o = mul float %m, 9.0 + ret float %o +} |