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llvm-mirror/test/CodeGen/X86/ptest.ll
Simon Pilgrim d654e7d40c [X86] Handle COPYs of physregs better (regalloc hints)
Enable enableMultipleCopyHints() on X86.

Original Patch by @jonpa:

While enabling the mischeduler for SystemZ, it was discovered that for some reason a test needed one extra seemingly needless COPY (test/CodeGen/SystemZ/call-03.ll). The handling for that is resulted in this patch, which improves the register coalescing by providing not just one copy hint, but a sorted list of copy hints. On SystemZ, this gives ~12500 less register moves on SPEC, as well as marginally less spilling.

Instead of improving just the SystemZ backend, the improvement has been implemented in common-code (calculateSpillWeightAndHint(). This gives a lot of test failures, but since this should be a general improvement I hope that the involved targets will help and review the test updates.

Differential Revision: https://reviews.llvm.org/D38128

llvm-svn: 342578
2018-09-19 18:59:08 +00:00

324 lines
9.3 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1,-avx < %s | FileCheck %s --check-prefix=SSE41
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx,-avx2 < %s | FileCheck %s --check-prefix=AVX --check-prefix=AVX1
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx512vl,+avx512dq,+avx512bw < %s | FileCheck %s --check-prefix=AVX --check-prefix=AVX512
define i32 @veccond128(<4 x i32> %input) {
; SSE41-LABEL: veccond128:
; SSE41: # %bb.0: # %entry
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: je .LBB0_2
; SSE41-NEXT: # %bb.1: # %if-true-block
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: retq
; SSE41-NEXT: .LBB0_2: # %endif-block
; SSE41-NEXT: movl $1, %eax
; SSE41-NEXT: retq
;
; AVX-LABEL: veccond128:
; AVX: # %bb.0: # %entry
; AVX-NEXT: vptest %xmm0, %xmm0
; AVX-NEXT: je .LBB0_2
; AVX-NEXT: # %bb.1: # %if-true-block
; AVX-NEXT: xorl %eax, %eax
; AVX-NEXT: retq
; AVX-NEXT: .LBB0_2: # %endif-block
; AVX-NEXT: movl $1, %eax
; AVX-NEXT: retq
entry:
%0 = bitcast <4 x i32> %input to i128
%1 = icmp ne i128 %0, 0
br i1 %1, label %if-true-block, label %endif-block
if-true-block:
ret i32 0
endif-block:
ret i32 1
}
define i32 @veccond256(<8 x i32> %input) {
; SSE41-LABEL: veccond256:
; SSE41: # %bb.0: # %entry
; SSE41-NEXT: por %xmm1, %xmm0
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: je .LBB1_2
; SSE41-NEXT: # %bb.1: # %if-true-block
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: retq
; SSE41-NEXT: .LBB1_2: # %endif-block
; SSE41-NEXT: movl $1, %eax
; SSE41-NEXT: retq
;
; AVX-LABEL: veccond256:
; AVX: # %bb.0: # %entry
; AVX-NEXT: vptest %ymm0, %ymm0
; AVX-NEXT: je .LBB1_2
; AVX-NEXT: # %bb.1: # %if-true-block
; AVX-NEXT: xorl %eax, %eax
; AVX-NEXT: vzeroupper
; AVX-NEXT: retq
; AVX-NEXT: .LBB1_2: # %endif-block
; AVX-NEXT: movl $1, %eax
; AVX-NEXT: vzeroupper
; AVX-NEXT: retq
entry:
%0 = bitcast <8 x i32> %input to i256
%1 = icmp ne i256 %0, 0
br i1 %1, label %if-true-block, label %endif-block
if-true-block:
ret i32 0
endif-block:
ret i32 1
}
define i32 @veccond512(<16 x i32> %input) {
; SSE41-LABEL: veccond512:
; SSE41: # %bb.0: # %entry
; SSE41-NEXT: por %xmm3, %xmm1
; SSE41-NEXT: por %xmm2, %xmm1
; SSE41-NEXT: por %xmm0, %xmm1
; SSE41-NEXT: ptest %xmm1, %xmm1
; SSE41-NEXT: je .LBB2_2
; SSE41-NEXT: # %bb.1: # %if-true-block
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: retq
; SSE41-NEXT: .LBB2_2: # %endif-block
; SSE41-NEXT: movl $1, %eax
; SSE41-NEXT: retq
;
; AVX1-LABEL: veccond512:
; AVX1: # %bb.0: # %entry
; AVX1-NEXT: vorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: vptest %ymm0, %ymm0
; AVX1-NEXT: je .LBB2_2
; AVX1-NEXT: # %bb.1: # %if-true-block
; AVX1-NEXT: xorl %eax, %eax
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
; AVX1-NEXT: .LBB2_2: # %endif-block
; AVX1-NEXT: movl $1, %eax
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
;
; AVX512-LABEL: veccond512:
; AVX512: # %bb.0: # %entry
; AVX512-NEXT: vextracti32x4 $3, %zmm0, %xmm1
; AVX512-NEXT: vmovq %xmm1, %rax
; AVX512-NEXT: vextracti128 $1, %ymm0, %xmm2
; AVX512-NEXT: vmovq %xmm2, %rcx
; AVX512-NEXT: orq %rax, %rcx
; AVX512-NEXT: vextracti32x4 $2, %zmm0, %xmm3
; AVX512-NEXT: vmovq %xmm3, %rax
; AVX512-NEXT: orq %rcx, %rax
; AVX512-NEXT: vmovq %xmm0, %rcx
; AVX512-NEXT: orq %rax, %rcx
; AVX512-NEXT: vpextrq $1, %xmm1, %rax
; AVX512-NEXT: vpextrq $1, %xmm2, %rdx
; AVX512-NEXT: orq %rax, %rdx
; AVX512-NEXT: vpextrq $1, %xmm3, %rax
; AVX512-NEXT: orq %rdx, %rax
; AVX512-NEXT: vpextrq $1, %xmm0, %rdx
; AVX512-NEXT: orq %rax, %rdx
; AVX512-NEXT: orq %rcx, %rdx
; AVX512-NEXT: je .LBB2_2
; AVX512-NEXT: # %bb.1: # %if-true-block
; AVX512-NEXT: xorl %eax, %eax
; AVX512-NEXT: vzeroupper
; AVX512-NEXT: retq
; AVX512-NEXT: .LBB2_2: # %endif-block
; AVX512-NEXT: movl $1, %eax
; AVX512-NEXT: vzeroupper
; AVX512-NEXT: retq
entry:
%0 = bitcast <16 x i32> %input to i512
%1 = icmp ne i512 %0, 0
br i1 %1, label %if-true-block, label %endif-block
if-true-block:
ret i32 0
endif-block:
ret i32 1
}
define i32 @vectest128(<4 x i32> %input) {
; SSE41-LABEL: vectest128:
; SSE41: # %bb.0:
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: setne %al
; SSE41-NEXT: retq
;
; AVX-LABEL: vectest128:
; AVX: # %bb.0:
; AVX-NEXT: xorl %eax, %eax
; AVX-NEXT: vptest %xmm0, %xmm0
; AVX-NEXT: setne %al
; AVX-NEXT: retq
%t0 = bitcast <4 x i32> %input to i128
%t1 = icmp ne i128 %t0, 0
%t2 = zext i1 %t1 to i32
ret i32 %t2
}
define i32 @vectest256(<8 x i32> %input) {
; SSE41-LABEL: vectest256:
; SSE41: # %bb.0:
; SSE41-NEXT: por %xmm1, %xmm0
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: setne %al
; SSE41-NEXT: retq
;
; AVX-LABEL: vectest256:
; AVX: # %bb.0:
; AVX-NEXT: xorl %eax, %eax
; AVX-NEXT: vptest %ymm0, %ymm0
; AVX-NEXT: setne %al
; AVX-NEXT: vzeroupper
; AVX-NEXT: retq
%t0 = bitcast <8 x i32> %input to i256
%t1 = icmp ne i256 %t0, 0
%t2 = zext i1 %t1 to i32
ret i32 %t2
}
define i32 @vectest512(<16 x i32> %input) {
; SSE41-LABEL: vectest512:
; SSE41: # %bb.0:
; SSE41-NEXT: por %xmm3, %xmm1
; SSE41-NEXT: por %xmm2, %xmm1
; SSE41-NEXT: por %xmm0, %xmm1
; SSE41-NEXT: xorl %eax, %eax
; SSE41-NEXT: ptest %xmm1, %xmm1
; SSE41-NEXT: setne %al
; SSE41-NEXT: retq
;
; AVX1-LABEL: vectest512:
; AVX1: # %bb.0:
; AVX1-NEXT: vorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: xorl %eax, %eax
; AVX1-NEXT: vptest %ymm0, %ymm0
; AVX1-NEXT: setne %al
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
;
; AVX512-LABEL: vectest512:
; AVX512: # %bb.0:
; AVX512-NEXT: vextracti32x4 $3, %zmm0, %xmm1
; AVX512-NEXT: vmovq %xmm1, %rax
; AVX512-NEXT: vextracti128 $1, %ymm0, %xmm2
; AVX512-NEXT: vmovq %xmm2, %rcx
; AVX512-NEXT: orq %rax, %rcx
; AVX512-NEXT: vextracti32x4 $2, %zmm0, %xmm3
; AVX512-NEXT: vmovq %xmm3, %rax
; AVX512-NEXT: orq %rcx, %rax
; AVX512-NEXT: vmovq %xmm0, %rcx
; AVX512-NEXT: orq %rax, %rcx
; AVX512-NEXT: vpextrq $1, %xmm1, %rax
; AVX512-NEXT: vpextrq $1, %xmm2, %rdx
; AVX512-NEXT: orq %rax, %rdx
; AVX512-NEXT: vpextrq $1, %xmm3, %rax
; AVX512-NEXT: orq %rdx, %rax
; AVX512-NEXT: vpextrq $1, %xmm0, %rdx
; AVX512-NEXT: orq %rax, %rdx
; AVX512-NEXT: xorl %eax, %eax
; AVX512-NEXT: orq %rcx, %rdx
; AVX512-NEXT: setne %al
; AVX512-NEXT: vzeroupper
; AVX512-NEXT: retq
%t0 = bitcast <16 x i32> %input to i512
%t1 = icmp ne i512 %t0, 0
%t2 = zext i1 %t1 to i32
ret i32 %t2
}
define i32 @vecsel128(<4 x i32> %input, i32 %a, i32 %b) {
; SSE41-LABEL: vecsel128:
; SSE41: # %bb.0:
; SSE41-NEXT: movl %edi, %eax
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: cmovel %esi, %eax
; SSE41-NEXT: retq
;
; AVX-LABEL: vecsel128:
; AVX: # %bb.0:
; AVX-NEXT: movl %edi, %eax
; AVX-NEXT: vptest %xmm0, %xmm0
; AVX-NEXT: cmovel %esi, %eax
; AVX-NEXT: retq
%t0 = bitcast <4 x i32> %input to i128
%t1 = icmp ne i128 %t0, 0
%t2 = select i1 %t1, i32 %a, i32 %b
ret i32 %t2
}
define i32 @vecsel256(<8 x i32> %input, i32 %a, i32 %b) {
; SSE41-LABEL: vecsel256:
; SSE41: # %bb.0:
; SSE41-NEXT: movl %edi, %eax
; SSE41-NEXT: por %xmm1, %xmm0
; SSE41-NEXT: ptest %xmm0, %xmm0
; SSE41-NEXT: cmovel %esi, %eax
; SSE41-NEXT: retq
;
; AVX-LABEL: vecsel256:
; AVX: # %bb.0:
; AVX-NEXT: movl %edi, %eax
; AVX-NEXT: vptest %ymm0, %ymm0
; AVX-NEXT: cmovel %esi, %eax
; AVX-NEXT: vzeroupper
; AVX-NEXT: retq
%t0 = bitcast <8 x i32> %input to i256
%t1 = icmp ne i256 %t0, 0
%t2 = select i1 %t1, i32 %a, i32 %b
ret i32 %t2
}
define i32 @vecsel512(<16 x i32> %input, i32 %a, i32 %b) {
; SSE41-LABEL: vecsel512:
; SSE41: # %bb.0:
; SSE41-NEXT: movl %edi, %eax
; SSE41-NEXT: por %xmm3, %xmm1
; SSE41-NEXT: por %xmm2, %xmm1
; SSE41-NEXT: por %xmm0, %xmm1
; SSE41-NEXT: ptest %xmm1, %xmm1
; SSE41-NEXT: cmovel %esi, %eax
; SSE41-NEXT: retq
;
; AVX1-LABEL: vecsel512:
; AVX1: # %bb.0:
; AVX1-NEXT: movl %edi, %eax
; AVX1-NEXT: vorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: vptest %ymm0, %ymm0
; AVX1-NEXT: cmovel %esi, %eax
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
;
; AVX512-LABEL: vecsel512:
; AVX512: # %bb.0:
; AVX512-NEXT: movl %edi, %eax
; AVX512-NEXT: vextracti32x4 $3, %zmm0, %xmm1
; AVX512-NEXT: vmovq %xmm1, %rcx
; AVX512-NEXT: vextracti128 $1, %ymm0, %xmm2
; AVX512-NEXT: vmovq %xmm2, %rdx
; AVX512-NEXT: orq %rcx, %rdx
; AVX512-NEXT: vextracti32x4 $2, %zmm0, %xmm3
; AVX512-NEXT: vmovq %xmm3, %rcx
; AVX512-NEXT: orq %rdx, %rcx
; AVX512-NEXT: vmovq %xmm0, %rdx
; AVX512-NEXT: orq %rcx, %rdx
; AVX512-NEXT: vpextrq $1, %xmm1, %rcx
; AVX512-NEXT: vpextrq $1, %xmm2, %rdi
; AVX512-NEXT: orq %rcx, %rdi
; AVX512-NEXT: vpextrq $1, %xmm3, %rcx
; AVX512-NEXT: orq %rdi, %rcx
; AVX512-NEXT: vpextrq $1, %xmm0, %rdi
; AVX512-NEXT: orq %rcx, %rdi
; AVX512-NEXT: orq %rdx, %rdi
; AVX512-NEXT: cmovel %esi, %eax
; AVX512-NEXT: vzeroupper
; AVX512-NEXT: retq
%t0 = bitcast <16 x i32> %input to i512
%t1 = icmp ne i512 %t0, 0
%t2 = select i1 %t1, i32 %a, i32 %b
ret i32 %t2
}