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llvm-6502/test/Transforms/Reassociate/fp-commute.ll
Duncan Sands b933586592 Grab-bag of reassociate tweaks. Unify handling of dead instructions and
instructions to reoptimize.  Exploit this to more systematically eliminate
dead instructions (this isn't very useful in practice but is convenient for
analysing some testcase I am working on).  No need for WeakVH any more: use
an AssertingVH instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158073 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06 14:53:10 +00:00

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366 B
LLVM

; RUN: opt -reassociate -S < %s | FileCheck %s
target triple = "armv7-apple-ios"
declare void @use(float)
; CHECK: test
define void @test(float %x, float %y) {
entry:
; CHECK: fmul float %x, %y
; CHECK: fmul float %x, %y
%0 = fmul float %x, %y
%1 = fmul float %y, %x
%2 = fsub float %0, %1
call void @use(float %0)
call void @use(float %2)
ret void
}