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| author | Chris Lattner <sabre@nondot.org> | 2008-02-27 05:57:41 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-02-27 05:57:41 +0000 |
| commit | b09916bdfbd7ffdc8fbadb5ee0c0b50567823f46 (patch) | |
| tree | 82b26d049ca1b0873011990f2b19c852a663bf65 /lib/System/Path.cpp | |
| parent | 22eedf4eec990f90988af819c034787019440cbd (diff) | |
| download | external_llvm-b09916bdfbd7ffdc8fbadb5ee0c0b50567823f46.zip external_llvm-b09916bdfbd7ffdc8fbadb5ee0c0b50567823f46.tar.gz external_llvm-b09916bdfbd7ffdc8fbadb5ee0c0b50567823f46.tar.bz2 | |
Make X86TargetLowering::LowerSINT_TO_FP return without creating a dead
stack slot and store if the SINT_TO_FP is actually legal. This allows
us to compile:
double a(double b) {return (unsigned)b;}
to:
_a:
cvttsd2siq %xmm0, %rax
movl %eax, %eax
cvtsi2sdq %rax, %xmm0
ret
instead of:
_a:
subq $8, %rsp
cvttsd2siq %xmm0, %rax
movl %eax, %eax
cvtsi2sdq %rax, %xmm0
addq $8, %rsp
ret
crazy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47660 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/System/Path.cpp')
0 files changed, 0 insertions, 0 deletions