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| author | Evan Cheng <evan.cheng@apple.com> | 2006-11-08 20:35:37 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-11-08 20:35:37 +0000 |
| commit | aacf99964f6f37d566f9fda5160b3826f3ce2da4 (patch) | |
| tree | 3b3cdacf08831f3f8974c0101ba3c3aa0ba6901a /lib/Target/X86/X86Subtarget.cpp | |
| parent | 0d53826f3653a789cf1491c3c40a1f4a993992b6 (diff) | |
Use movl+xchgl instead of pushl+popl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31572 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 804ba39f69..3ac8a38b31 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -44,10 +44,9 @@ bool X86::GetCpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX, return false; #elif defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86) #if defined(__GNUC__) - asm ("pushl\t%%ebx\n\t" + asm ("movl\t%%ebx, %%esi\n\t" "cpuid\n\t" - "movl\t%%ebx, %%esi\n\t" - "popl\t%%ebx" + "xchgl\t%%ebx, %%esi\n\t" : "=a" (*rEAX), "=S" (*rEBX), "=c" (*rECX), |