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be8cc2a3de
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
443 B
LLVM
18 lines
443 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mattr=sse2 | grep movsd | count 5
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; RUN: llvm-as < %s | llc -march=x86 -mattr=sse2 -O0 | grep movsd | count 5
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@x = external global double
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define void @foo() nounwind {
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%a = volatile load double* @x
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volatile store double 0.0, double* @x
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volatile store double 0.0, double* @x
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%b = volatile load double* @x
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ret void
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}
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define void @bar() nounwind {
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%c = volatile load double* @x
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ret void
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}
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