llvm-mirror/test/CodeGen/X86/sse2.ll
Evan Cheng 4760ff0763 Use a bigger hammer to fix PR11314 by disabling the "forcing two-address
instruction lower optimization" in the pre-RA scheduler.

The optimization, rather the hack, was done before MI use-list was available.
Now we should be able to implement it in a better way, perhaps in the
two-address pass until a MI scheduler is available.

Now that the scheduler has to backtrack to handle call sequences. Adding
artificial scheduling constraints is just not safe. Furthermore, the hack
is not taking all the other scheduling decisions into consideration so it's just
as likely to pessimize code. So I view disabling this optimization goodness
regardless of PR11314.

llvm-svn: 144267
2011-11-10 07:43:16 +00:00

225 lines
9.9 KiB
LLVM

; Tests for SSE2 and below, without SSE3+.
; RUN: llc < %s -mtriple=i386-apple-darwin10 -mcpu=pentium4 -O3 | FileCheck %s
define void @test1(<2 x double>* %r, <2 x double>* %A, double %B) nounwind {
%tmp3 = load <2 x double>* %A, align 16
%tmp7 = insertelement <2 x double> undef, double %B, i32 0
%tmp9 = shufflevector <2 x double> %tmp3, <2 x double> %tmp7, <2 x i32> < i32 2, i32 1 >
store <2 x double> %tmp9, <2 x double>* %r, align 16
ret void
; CHECK: test1:
; CHECK: movl 8(%esp), %eax
; CHECK-NEXT: movapd (%eax), %xmm0
; CHECK-NEXT: movlpd 12(%esp), %xmm0
; CHECK-NEXT: movl 4(%esp), %eax
; CHECK-NEXT: movapd %xmm0, (%eax)
; CHECK-NEXT: ret
}
define void @test2(<2 x double>* %r, <2 x double>* %A, double %B) nounwind {
%tmp3 = load <2 x double>* %A, align 16
%tmp7 = insertelement <2 x double> undef, double %B, i32 0
%tmp9 = shufflevector <2 x double> %tmp3, <2 x double> %tmp7, <2 x i32> < i32 0, i32 2 >
store <2 x double> %tmp9, <2 x double>* %r, align 16
ret void
; CHECK: test2:
; CHECK: movl 8(%esp), %eax
; CHECK-NEXT: movapd (%eax), %xmm0
; CHECK-NEXT: movhpd 12(%esp), %xmm0
; CHECK-NEXT: movl 4(%esp), %eax
; CHECK-NEXT: movapd %xmm0, (%eax)
; CHECK-NEXT: ret
}
define void @test3(<4 x float>* %res, <4 x float>* %A, <4 x float>* %B) nounwind {
%tmp = load <4 x float>* %B ; <<4 x float>> [#uses=2]
%tmp3 = load <4 x float>* %A ; <<4 x float>> [#uses=2]
%tmp.upgrd.1 = extractelement <4 x float> %tmp3, i32 0 ; <float> [#uses=1]
%tmp7 = extractelement <4 x float> %tmp, i32 0 ; <float> [#uses=1]
%tmp8 = extractelement <4 x float> %tmp3, i32 1 ; <float> [#uses=1]
%tmp9 = extractelement <4 x float> %tmp, i32 1 ; <float> [#uses=1]
%tmp10 = insertelement <4 x float> undef, float %tmp.upgrd.1, i32 0 ; <<4 x float>> [#uses=1]
%tmp11 = insertelement <4 x float> %tmp10, float %tmp7, i32 1 ; <<4 x float>> [#uses=1]
%tmp12 = insertelement <4 x float> %tmp11, float %tmp8, i32 2 ; <<4 x float>> [#uses=1]
%tmp13 = insertelement <4 x float> %tmp12, float %tmp9, i32 3 ; <<4 x float>> [#uses=1]
store <4 x float> %tmp13, <4 x float>* %res
ret void
; CHECK: @test3
; CHECK: unpcklps
}
define void @test4(<4 x float> %X, <4 x float>* %res) nounwind {
%tmp5 = shufflevector <4 x float> %X, <4 x float> undef, <4 x i32> < i32 2, i32 6, i32 3, i32 7 > ; <<4 x float>> [#uses=1]
store <4 x float> %tmp5, <4 x float>* %res
ret void
; CHECK: @test4
; CHECK: pshufd $50, %xmm0, %xmm0
}
define <4 x i32> @test5(i8** %ptr) nounwind {
; CHECK: test5:
; CHECK: pxor
; CHECK: punpcklbw
; CHECK: punpcklwd
%tmp = load i8** %ptr ; <i8*> [#uses=1]
%tmp.upgrd.1 = bitcast i8* %tmp to float* ; <float*> [#uses=1]
%tmp.upgrd.2 = load float* %tmp.upgrd.1 ; <float> [#uses=1]
%tmp.upgrd.3 = insertelement <4 x float> undef, float %tmp.upgrd.2, i32 0 ; <<4 x float>> [#uses=1]
%tmp9 = insertelement <4 x float> %tmp.upgrd.3, float 0.000000e+00, i32 1 ; <<4 x float>> [#uses=1]
%tmp10 = insertelement <4 x float> %tmp9, float 0.000000e+00, i32 2 ; <<4 x float>> [#uses=1]
%tmp11 = insertelement <4 x float> %tmp10, float 0.000000e+00, i32 3 ; <<4 x float>> [#uses=1]
%tmp21 = bitcast <4 x float> %tmp11 to <16 x i8> ; <<16 x i8>> [#uses=1]
%tmp22 = shufflevector <16 x i8> %tmp21, <16 x i8> zeroinitializer, <16 x i32> < i32 0, i32 16, i32 1, i32 17, i32 2, i32 18, i32 3, i32 19, i32 4, i32 20, i32 5, i32 21, i32 6, i32 22, i32 7, i32 23 > ; <<16 x i8>> [#uses=1]
%tmp31 = bitcast <16 x i8> %tmp22 to <8 x i16> ; <<8 x i16>> [#uses=1]
%tmp.upgrd.4 = shufflevector <8 x i16> zeroinitializer, <8 x i16> %tmp31, <8 x i32> < i32 0, i32 8, i32 1, i32 9, i32 2, i32 10, i32 3, i32 11 > ; <<8 x i16>> [#uses=1]
%tmp36 = bitcast <8 x i16> %tmp.upgrd.4 to <4 x i32> ; <<4 x i32>> [#uses=1]
ret <4 x i32> %tmp36
}
define void @test6(<4 x float>* %res, <4 x float>* %A) nounwind {
%tmp1 = load <4 x float>* %A ; <<4 x float>> [#uses=1]
%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x i32> < i32 0, i32 5, i32 6, i32 7 > ; <<4 x float>> [#uses=1]
store <4 x float> %tmp2, <4 x float>* %res
ret void
; CHECK: test6:
; CHECK: movaps (%eax), %xmm0
; CHECK: movaps %xmm0, (%eax)
}
define void @test7() nounwind {
bitcast <4 x i32> zeroinitializer to <4 x float> ; <<4 x float>>:1 [#uses=1]
shufflevector <4 x float> %1, <4 x float> zeroinitializer, <4 x i32> zeroinitializer ; <<4 x float>>:2 [#uses=1]
store <4 x float> %2, <4 x float>* null
ret void
; CHECK: test7:
; CHECK: xorps %xmm0, %xmm0
; CHECK: movaps %xmm0, 0
}
@x = external global [4 x i32]
define <2 x i64> @test8() nounwind {
%tmp = load i32* getelementptr ([4 x i32]* @x, i32 0, i32 0) ; <i32> [#uses=1]
%tmp3 = load i32* getelementptr ([4 x i32]* @x, i32 0, i32 1) ; <i32> [#uses=1]
%tmp5 = load i32* getelementptr ([4 x i32]* @x, i32 0, i32 2) ; <i32> [#uses=1]
%tmp7 = load i32* getelementptr ([4 x i32]* @x, i32 0, i32 3) ; <i32> [#uses=1]
%tmp.upgrd.1 = insertelement <4 x i32> undef, i32 %tmp, i32 0 ; <<4 x i32>> [#uses=1]
%tmp13 = insertelement <4 x i32> %tmp.upgrd.1, i32 %tmp3, i32 1 ; <<4 x i32>> [#uses=1]
%tmp14 = insertelement <4 x i32> %tmp13, i32 %tmp5, i32 2 ; <<4 x i32>> [#uses=1]
%tmp15 = insertelement <4 x i32> %tmp14, i32 %tmp7, i32 3 ; <<4 x i32>> [#uses=1]
%tmp16 = bitcast <4 x i32> %tmp15 to <2 x i64> ; <<2 x i64>> [#uses=1]
ret <2 x i64> %tmp16
; CHECK: test8:
; CHECK: movups (%eax), %xmm0
}
define <4 x float> @test9(i32 %dummy, float %a, float %b, float %c, float %d) nounwind {
%tmp = insertelement <4 x float> undef, float %a, i32 0 ; <<4 x float>> [#uses=1]
%tmp11 = insertelement <4 x float> %tmp, float %b, i32 1 ; <<4 x float>> [#uses=1]
%tmp12 = insertelement <4 x float> %tmp11, float %c, i32 2 ; <<4 x float>> [#uses=1]
%tmp13 = insertelement <4 x float> %tmp12, float %d, i32 3 ; <<4 x float>> [#uses=1]
ret <4 x float> %tmp13
; CHECK: test9:
; CHECK: movups 8(%esp), %xmm0
}
define <4 x float> @test10(float %a, float %b, float %c, float %d) nounwind {
%tmp = insertelement <4 x float> undef, float %a, i32 0 ; <<4 x float>> [#uses=1]
%tmp11 = insertelement <4 x float> %tmp, float %b, i32 1 ; <<4 x float>> [#uses=1]
%tmp12 = insertelement <4 x float> %tmp11, float %c, i32 2 ; <<4 x float>> [#uses=1]
%tmp13 = insertelement <4 x float> %tmp12, float %d, i32 3 ; <<4 x float>> [#uses=1]
ret <4 x float> %tmp13
; CHECK: test10:
; CHECK: movaps 4(%esp), %xmm0
}
define <2 x double> @test11(double %a, double %b) nounwind {
%tmp = insertelement <2 x double> undef, double %a, i32 0 ; <<2 x double>> [#uses=1]
%tmp7 = insertelement <2 x double> %tmp, double %b, i32 1 ; <<2 x double>> [#uses=1]
ret <2 x double> %tmp7
; CHECK: test11:
; CHECK: movaps 4(%esp), %xmm0
}
define void @test12() nounwind {
%tmp1 = load <4 x float>* null ; <<4 x float>> [#uses=2]
%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> < float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 >, <4 x i32> < i32 0, i32 1, i32 6, i32 7 > ; <<4 x float>> [#uses=1]
%tmp3 = shufflevector <4 x float> %tmp1, <4 x float> zeroinitializer, <4 x i32> < i32 2, i32 3, i32 6, i32 7 > ; <<4 x float>> [#uses=1]
%tmp4 = fadd <4 x float> %tmp2, %tmp3 ; <<4 x float>> [#uses=1]
store <4 x float> %tmp4, <4 x float>* null
ret void
; CHECK: test12:
; CHECK: movhlps
; CHECK: shufps
}
define void @test13(<4 x float>* %res, <4 x float>* %A, <4 x float>* %B, <4 x float>* %C) nounwind {
%tmp3 = load <4 x float>* %B ; <<4 x float>> [#uses=1]
%tmp5 = load <4 x float>* %C ; <<4 x float>> [#uses=1]
%tmp11 = shufflevector <4 x float> %tmp3, <4 x float> %tmp5, <4 x i32> < i32 1, i32 4, i32 1, i32 5 > ; <<4 x float>> [#uses=1]
store <4 x float> %tmp11, <4 x float>* %res
ret void
; CHECK: test13
; CHECK: shufps $69, (%eax), %xmm0
; CHECK: pshufd $-40, %xmm0, %xmm0
}
define <4 x float> @test14(<4 x float>* %x, <4 x float>* %y) nounwind {
%tmp = load <4 x float>* %y ; <<4 x float>> [#uses=2]
%tmp5 = load <4 x float>* %x ; <<4 x float>> [#uses=2]
%tmp9 = fadd <4 x float> %tmp5, %tmp ; <<4 x float>> [#uses=1]
%tmp21 = fsub <4 x float> %tmp5, %tmp ; <<4 x float>> [#uses=1]
%tmp27 = shufflevector <4 x float> %tmp9, <4 x float> %tmp21, <4 x i32> < i32 0, i32 1, i32 4, i32 5 > ; <<4 x float>> [#uses=1]
ret <4 x float> %tmp27
; CHECK: test14:
; CHECK: subps [[X1:%xmm[0-9]+]], [[X2:%xmm[0-9]+]]
; CHECK: addps [[X1]], [[X0:%xmm[0-9]+]]
; CHECK: movlhps [[X2]], [[X0]]
}
define <4 x float> @test15(<4 x float>* %x, <4 x float>* %y) nounwind {
entry:
%tmp = load <4 x float>* %y ; <<4 x float>> [#uses=1]
%tmp3 = load <4 x float>* %x ; <<4 x float>> [#uses=1]
%tmp4 = shufflevector <4 x float> %tmp3, <4 x float> %tmp, <4 x i32> < i32 2, i32 3, i32 6, i32 7 > ; <<4 x float>> [#uses=1]
ret <4 x float> %tmp4
; CHECK: test15:
; CHECK: movhlps %xmm1, %xmm0
}
; PR8900
; CHECK: test16:
; CHECK: unpcklpd
; CHECK: ret
define <2 x double> @test16(<4 x double> * nocapture %srcA, <2 x double>* nocapture %dst) {
%i5 = getelementptr inbounds <4 x double>* %srcA, i32 3
%i6 = load <4 x double>* %i5, align 32
%i7 = shufflevector <4 x double> %i6, <4 x double> undef, <2 x i32> <i32 0, i32 2>
ret <2 x double> %i7
}
; PR9009
define fastcc void @test17() nounwind {
entry:
%0 = insertelement <4 x i32> undef, i32 undef, i32 1
%1 = shufflevector <4 x i32> <i32 undef, i32 undef, i32 32768, i32 32768>, <4 x i32> %0, <4 x i32> <i32 4, i32 5, i32 2, i32 3>
%2 = bitcast <4 x i32> %1 to <4 x float>
store <4 x float> %2, <4 x float> * undef
ret void
}
; PR9210
define <4 x float> @f(<4 x double>) nounwind {
entry:
%double2float.i = fptrunc <4 x double> %0 to <4 x float>
ret <4 x float> %double2float.i
}