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Fix PR7162: Use source register classes and sub-indices to determine the correct register class of the definitions of REG_SEQUENCE.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104050 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2010-05-18 20:03:28 +00:00
parent f336bea195
commit 27e4840e03
2 changed files with 44 additions and 4 deletions
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38
test/CodeGen/ARM/reg_sequence.ll
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@@ -264,6 +264,44 @@ define arm_aapcs_vfpcc float @t9(%0* nocapture, %3* nocapture) nounwind {
ret float 9.990000e+02
}
; PR7162
define arm_aapcs_vfpcc i32 @t10() nounwind {
entry:
; CHECK: t10:
; CHECK: vmov.i32 q1, #0x3F000000
; CHECK: vdup.32 q0, d0[0]
; CHECK: vmov d0, d1
; CHECK: vmla.f32 q0, q0, d0[0]
%0 = shufflevector <4 x float> zeroinitializer, <4 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1]
%1 = insertelement <4 x float> %0, float undef, i32 1 ; <<4 x float>> [#uses=1]
%2 = insertelement <4 x float> %1, float undef, i32 2 ; <<4 x float>> [#uses=1]
%3 = insertelement <4 x float> %2, float undef, i32 3 ; <<4 x float>> [#uses=1]
%tmp54.i = bitcast <4 x float> %3 to <2 x double> ; <<2 x double>> [#uses=1]
%4 = extractelement <2 x double> %tmp54.i, i32 1 ; <double> [#uses=1]
%5 = bitcast double %4 to <2 x float> ; <<2 x float>> [#uses=1]
%6 = shufflevector <2 x float> %5, <2 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1]
%7 = fmul <4 x float> undef, %6 ; <<4 x float>> [#uses=1]
%8 = fadd <4 x float> %7, undef ; <<4 x float>> [#uses=1]
%9 = fadd <4 x float> %8, undef ; <<4 x float>> [#uses=1]
%10 = shufflevector <4 x float> undef, <4 x float> %9, <4 x i32> <i32 0, i32 1, i32 2, i32 7> ; <<4 x float>> [#uses=1]
%11 = fmul <4 x float> %10, <float 5.000000e-01, float 5.000000e-01, float 5.000000e-01, float 5.000000e-01> ; <<4 x float>> [#uses=1]
%12 = shufflevector <4 x float> %11, <4 x float> undef, <4 x i32> <i32 3, i32 undef, i32 undef, i32 undef> ; <<4 x float>> [#uses=1]
%13 = shufflevector <4 x float> %12, <4 x float> undef, <4 x i32> zeroinitializer ; <<4 x float>> [#uses=1]
%14 = fmul <4 x float> %13, undef ; <<4 x float>> [#uses=1]
%15 = fadd <4 x float> undef, %14 ; <<4 x float>> [#uses=1]
%16 = shufflevector <4 x float> undef, <4 x float> %15, <4 x i32> <i32 0, i32 1, i32 6, i32 3> ; <<4 x float>> [#uses=1]
%17 = fmul <4 x float> %16, undef ; <<4 x float>> [#uses=1]
%18 = extractelement <4 x float> %17, i32 2 ; <float> [#uses=1]
store float %18, float* undef, align 4
br i1 undef, label %exit, label %bb14
exit: ; preds = %bb.i19
unreachable
bb14: ; preds = %bb6
ret i32 0
}
declare <4 x i32> @llvm.arm.neon.vld1.v4i32(i8*) nounwind readonly
declare <8 x i16> @llvm.arm.neon.vld1.v8i16(i8*) nounwind readonly