llvm-6502/test/CodeGen/X86/x86-64-psub.ll
Eric Christopher f276c70bb8 Reapply "Subtract isn't commutative, fix this for MMX psub." with
a somewhat randomly chosen cpu that will minimize cpu specific
differences on bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181814 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-14 18:33:40 +00:00

214 lines
7.9 KiB
LLVM

; RUN: llc -mtriple=x86_64-pc-linux -mcpu=corei7 < %s | FileCheck %s
; MMX packed sub opcodes were wrongly marked as commutative.
; This test checks that the operands of packed sub instructions are
; never interchanged by the "Two-Address instruction pass".
declare { i64, double } @getFirstParam()
declare { i64, double } @getSecondParam()
define i64 @test_psubb() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <8 x i8>
%3 = bitcast <8 x i8> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <8 x i8>
%5 = bitcast <8 x i8> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psub.b(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <8 x i8>
%8 = bitcast <8 x i8> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubb:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubb [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubw() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <4 x i16>
%3 = bitcast <4 x i16> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <4 x i16>
%5 = bitcast <4 x i16> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psub.w(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <4 x i16>
%8 = bitcast <4 x i16> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubw:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubw [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubd() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <2 x i32>
%3 = bitcast <2 x i32> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <2 x i32>
%5 = bitcast <2 x i32> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psub.d(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <2 x i32>
%8 = bitcast <2 x i32> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubd:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubd [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubsb() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <8 x i8>
%3 = bitcast <8 x i8> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <8 x i8>
%5 = bitcast <8 x i8> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psubs.b(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <8 x i8>
%8 = bitcast <8 x i8> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubsb:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubsb [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubswv() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <4 x i16>
%3 = bitcast <4 x i16> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <4 x i16>
%5 = bitcast <4 x i16> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psubs.w(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <4 x i16>
%8 = bitcast <4 x i16> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubswv:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubsw [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubusbv() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <8 x i8>
%3 = bitcast <8 x i8> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <8 x i8>
%5 = bitcast <8 x i8> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psubus.b(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <8 x i8>
%8 = bitcast <8 x i8> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubusbv:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubusb [[PARAM2]], [[PARAM1]]
; CHECK: ret
define i64 @test_psubuswv() {
entry:
%call = tail call { i64, double } @getFirstParam()
%0 = extractvalue { i64, double } %call, 0
%call2 = tail call { i64, double } @getSecondParam()
%1 = extractvalue { i64, double } %call2, 0
%__m1.0.insert.i = insertelement <1 x i64> undef, i64 %0, i32 0
%__m2.0.insert.i = insertelement <1 x i64> undef, i64 %1, i32 0
%2 = bitcast <1 x i64> %__m1.0.insert.i to <4 x i16>
%3 = bitcast <4 x i16> %2 to x86_mmx
%4 = bitcast <1 x i64> %__m2.0.insert.i to <4 x i16>
%5 = bitcast <4 x i16> %4 to x86_mmx
%6 = tail call x86_mmx @llvm.x86.mmx.psubus.w(x86_mmx %3, x86_mmx %5) nounwind
%7 = bitcast x86_mmx %6 to <4 x i16>
%8 = bitcast <4 x i16> %7 to <1 x i64>
%retval.0.extract.i15 = extractelement <1 x i64> %8, i32 0
ret i64 %retval.0.extract.i15
}
; CHECK: test_psubuswv:
; CHECK: callq getFirstParam
; CHECK: callq getSecondParam
; CHECK: movd %rax, [[PARAM2:%[a-z0-9]+]]
; CHECK: movq (%rsp), [[PARAM1:%[a-z0-9]+]]
; CHECK: psubusw [[PARAM2]], [[PARAM1]]
; CHECK: ret
declare x86_mmx @llvm.x86.mmx.psubus.w(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psubus.b(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psubs.w(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psubs.b(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psub.d(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psub.w(x86_mmx, x86_mmx) nounwind readnone
declare x86_mmx @llvm.x86.mmx.psub.b(x86_mmx, x86_mmx) nounwind readnone