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llvm-mirror/test/CodeGen/X86/stack-folding-bmi2.ll
Amaury Sechet be76727545 [X86] Automatically generate stack folding tests. NFC 
llvm-svn: 369876
2019-08-25 20:48:14 +00:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O3 -disable-peephole -mtriple=x86_64-unknown-unknown -mattr=+bmi,+bmi2 < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-unknown"
; Stack reload folding tests.
;
; By including a nop call with sideeffects we can force a partial register spill of the
; relevant registers and check that the reload is correctly folded into the instruction.
define i32 @stack_fold_bzhi_u32(i32 %a0, i32 %a1) {
; CHECK-LABEL: stack_fold_bzhi_u32:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %esi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %edi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movl {{[-0-9]+}}(%r{{[sb]}}p), %eax # 4-byte Reload
; CHECK-NEXT: bzhil %eax, {{[-0-9]+}}(%r{{[sb]}}p), %eax # 4-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i32 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i32 @llvm.x86.bmi.bzhi.32(i32 %a0, i32 %a1)
ret i32 %2
}
declare i32 @llvm.x86.bmi.bzhi.32(i32, i32)
define i64 @stack_fold_bzhi_u64(i64 %a0, i64 %a1) {
; CHECK-LABEL: stack_fold_bzhi_u64:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq %rsi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: movq %rdi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Reload
; CHECK-NEXT: bzhiq %rax, {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i64 @llvm.x86.bmi.bzhi.64(i64 %a0, i64 %a1)
ret i64 %2
}
declare i64 @llvm.x86.bmi.bzhi.64(i64, i64)
define i32 @stack_fold_pdep_u32(i32 %a0, i32 %a1) {
; CHECK-LABEL: stack_fold_pdep_u32:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %esi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %edi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movl {{[-0-9]+}}(%r{{[sb]}}p), %eax # 4-byte Reload
; CHECK-NEXT: pdepl {{[-0-9]+}}(%r{{[sb]}}p), %eax, %eax # 4-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i32 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i32 @llvm.x86.bmi.pdep.32(i32 %a0, i32 %a1)
ret i32 %2
}
declare i32 @llvm.x86.bmi.pdep.32(i32, i32)
define i64 @stack_fold_pdep_u64(i64 %a0, i64 %a1) {
; CHECK-LABEL: stack_fold_pdep_u64:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq %rsi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: movq %rdi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Reload
; CHECK-NEXT: pdepq {{[-0-9]+}}(%r{{[sb]}}p), %rax, %rax # 8-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i64 @llvm.x86.bmi.pdep.64(i64 %a0, i64 %a1)
ret i64 %2
}
declare i64 @llvm.x86.bmi.pdep.64(i64, i64)
define i32 @stack_fold_pext_u32(i32 %a0, i32 %a1) {
; CHECK-LABEL: stack_fold_pext_u32:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movl %esi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: movl %edi, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movl {{[-0-9]+}}(%r{{[sb]}}p), %eax # 4-byte Reload
; CHECK-NEXT: pextl {{[-0-9]+}}(%r{{[sb]}}p), %eax, %eax # 4-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i32 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i32 @llvm.x86.bmi.pext.32(i32 %a0, i32 %a1)
ret i32 %2
}
declare i32 @llvm.x86.bmi.pext.32(i32, i32)
define i64 @stack_fold_pext_u64(i64 %a0, i64 %a1) {
; CHECK-LABEL: stack_fold_pext_u64:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 56
; CHECK-NEXT: .cfi_offset %rbx, -56
; CHECK-NEXT: .cfi_offset %r12, -48
; CHECK-NEXT: .cfi_offset %r13, -40
; CHECK-NEXT: .cfi_offset %r14, -32
; CHECK-NEXT: .cfi_offset %r15, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq %rsi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: movq %rdi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT: #APP
; CHECK-NEXT: nop
; CHECK-NEXT: #NO_APP
; CHECK-NEXT: movq {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Reload
; CHECK-NEXT: pextq {{[-0-9]+}}(%r{{[sb]}}p), %rax, %rax # 8-byte Folded Reload
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: popq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: popq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: popq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%1 = tail call i64 asm sideeffect "nop", "=x,~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"()
%2 = tail call i64 @llvm.x86.bmi.pext.64(i64 %a0, i64 %a1)
ret i64 %2
}
declare i64 @llvm.x86.bmi.pext.64(i64, i64)
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