llvm-6502/test/CodeGen/ARM/2010-12-07-PEIBug.ll
Evan Cheng 06d65f5156 Fix a bad prologue / epilogue codegen bug where the compiler would emit illegal
vpush instructions to save / restore VFP / NEON registers like this:
vpush {d8,d10,d11}
vpop {d8,d10,d11}

vpush and vpop do not allow gaps in the register list.
rdar://8728956


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121197 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07 23:08:38 +00:00

41 lines
1.4 KiB
LLVM

; RUN: llc < %s -mtriple=thumbv7-apple-darwin10 -mcpu=cortex-a8 | FileCheck %s
; rdar://8728956
define hidden void @foo() nounwind ssp {
entry:
; CHECK: foo:
; CHECK: push {r7, lr}
; CHECK-NEXT: mov r7, sp
; CHECK-NEXT: vpush {d8}
; CHECK-NEXT: vpush {d10, d11}
%tmp40 = load <4 x i8>* undef
%tmp41 = extractelement <4 x i8> %tmp40, i32 2
%conv42 = zext i8 %tmp41 to i32
%conv43 = sitofp i32 %conv42 to float
%div44 = fdiv float %conv43, 2.560000e+02
%vecinit45 = insertelement <4 x float> undef, float %div44, i32 2
%vecinit46 = insertelement <4 x float> %vecinit45, float 1.000000e+00, i32 3
store <4 x float> %vecinit46, <4 x float>* undef
br i1 undef, label %if.then105, label %if.else109
if.then105: ; preds = %entry
br label %if.end114
if.else109: ; preds = %entry
br label %if.end114
if.end114: ; preds = %if.else109, %if.then105
%call185 = call float @bar()
%vecinit186 = insertelement <4 x float> undef, float %call185, i32 1
%call189 = call float @bar()
%vecinit190 = insertelement <4 x float> %vecinit186, float %call189, i32 2
%vecinit191 = insertelement <4 x float> %vecinit190, float 1.000000e+00, i32 3
store <4 x float> %vecinit191, <4 x float>* undef
; CHECK: vpop {d10, d11}
; CHECK-NEXT: vpop {d8}
; CHECK-NEXT: pop {r7, pc}
ret void
}
declare hidden float @bar() nounwind readnone ssp