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Fix PR5614: parts of a physical register def may be killed the rest.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90180 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-12-01 00:44:45 +00:00
parent d188dba149
commit a4025df42d
3 changed files with 95 additions and 3 deletions
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41
test/CodeGen/ARM/2009-11-30-LiveVariablesBug.ll Normal file
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@@ -0,0 +1,41 @@
; RUN: llc -mtriple=armv7-eabi -mcpu=cortex-a8 < %s
; PR5614
%"als" = type { i32 (...)** }
%"av" = type { %"als" }
%"c" = type { %"lsm", %"Vec3", %"av"*, float, i8, float, %"lsm", i8, %"Vec3", %"Vec3", %"Vec3", float, float, float, %"Vec3", %"Vec3" }
%"lsm" = type { %"als", %"Vec3", %"Vec3", %"Vec3", %"Vec3" }
%"Vec3" = type { float, float, float }
define arm_aapcs_vfpcc void @foo(%"c"* %this, %"Vec3"* nocapture %adjustment) {
entry:
switch i32 undef, label %return [
i32 1, label %bb
i32 2, label %bb72
i32 3, label %bb31
i32 4, label %bb79
i32 5, label %bb104
]
bb: ; preds = %entry
ret void
bb31: ; preds = %entry
%0 = call arm_aapcs_vfpcc %"Vec3" undef(%"lsm"* undef) ; <%"Vec3"> [#uses=1]
%mrv_gr69 = extractvalue %"Vec3" %0, 1 ; <float> [#uses=1]
%1 = fsub float %mrv_gr69, undef ; <float> [#uses=1]
store float %1, float* undef, align 4
ret void
bb72: ; preds = %entry
ret void
bb79: ; preds = %entry
ret void
bb104: ; preds = %entry
ret void
return: ; preds = %entry
ret void
}