llvm-6502/test/CodeGen/X86/remat-constant.ll

; RUN: llvm-as < %s | llc -march=x86-64 -relocation-model=static -aggressive-remat | grep xmm | count 2

declare void @bar() nounwind

@a = external constant float

declare void @qux(float %f) nounwind 

define void @foo() nounwind  {
  %f = load float* @a
  call void @bar()
  call void @qux(float %f)
  call void @qux(float %f)
  ret void
}
This test needs -aggressive-remat enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54015 91177308-0d34-0410-b5e6-96231b3b80d8 2008-07-25 15:25:32 +00:00			`; RUN: llvm-as < %s \| llc -march=x86-64 -relocation-model=static -aggressive-remat \| grep xmm \| count 2`
Enable rematerialization of constants using AliasAnalysis::pointsToConstantMemory, and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow constants to be rematerialized in PIC mode -- the extra indirection is a complication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8 2008-07-25 00:02:30 +00:00
			`declare void @bar() nounwind`

			`@a = external constant float`

			`declare void @qux(float %f) nounwind`

			`define void @foo() nounwind {`
			`%f = load float* @a`
			`call void @bar()`
			`call void @qux(float %f)`
			`call void @qux(float %f)`
			`ret void`
			`}`