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Add a test case for global live range splitting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157357 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-05-23 23:42:23 +00:00
parent d74d284757
commit 39867e6646
1 changed files with 27 additions and 0 deletions
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27
test/CodeGen/Thumb2/inflate-regs.ll
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@ -20,3 +20,30 @@ entry:
store float %a, float* %p, align 4
ret void
}
; CHECK: global_split
;
; Same thing, but across basic blocks.
;
; CHECK: vldr s
; CHECK-NOT: vstr
; CHECK: vadd.f32
; CHECK-NOT: vstr
; CHECK: vorr
; CHECK: vstr s
define void @global_split(float* nocapture %p1, float* nocapture %p2) nounwind ssp {
entry:
%0 = load float* %p1, align 4
%add = fadd float %0, 1.000000e+00
tail call void asm sideeffect "", "~{d0},~{d1},~{d2},~{d3},~{d4},~{d5},~{d6},~{d7},~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"() nounwind
%cmp = fcmp ogt float %add, 0.000000e+00
br i1 %cmp, label %if.then, label %if.end
if.then:
store float %add, float* %p2, align 4
br label %if.end
if.end:
store float %add, float* %p1, align 4
ret void
}