pr32345.ll
5.62 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -fast-isel-sink-local-values -O0 -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s -check-prefix=X640
; RUN: llc -fast-isel-sink-local-values -O0 -mtriple=i686-unknown -o - %s | FileCheck %s -check-prefix=6860
; RUN: llc -fast-isel-sink-local-values -mtriple=x86_64-unknown-linux-gnu -o - %s | FileCheck %s -check-prefix=X64
; RUN: llc -fast-isel-sink-local-values -mtriple=i686-unknown -o - %s | FileCheck %s -check-prefix=686
@var_22 = external global i16, align 2
@var_27 = external global i16, align 2
define void @foo() {
; X640-LABEL: foo:
; X640: # %bb.0: # %bb
; X640-NEXT: movzwl var_22, %eax
; X640-NEXT: movzwl var_27, %ecx
; X640-NEXT: xorl %ecx, %eax
; X640-NEXT: movzwl var_27, %ecx
; X640-NEXT: xorl %ecx, %eax
; X640-NEXT: cltq
; X640-NEXT: movq %rax, -{{[0-9]+}}(%rsp)
; X640-NEXT: movzwl var_22, %eax
; X640-NEXT: movzwl var_27, %ecx
; X640-NEXT: xorl %ecx, %eax
; X640-NEXT: movzwl var_27, %ecx
; X640-NEXT: xorl %ecx, %eax
; X640-NEXT: cltq
; X640-NEXT: movzwl var_27, %ecx
; X640-NEXT: subl $16610, %ecx # imm = 0x40E2
; X640-NEXT: movl %ecx, %ecx
; X640-NEXT: # kill: def $rcx killed $ecx
; X640-NEXT: # kill: def $cl killed $rcx
; X640-NEXT: sarq %cl, %rax
; X640-NEXT: movb %al, %cl
; X640-NEXT: # implicit-def: $rax
; X640-NEXT: movb %cl, (%rax)
; X640-NEXT: retq
;
; 6860-LABEL: foo:
; 6860: # %bb.0: # %bb
; 6860-NEXT: pushl %ebp
; 6860-NEXT: .cfi_def_cfa_offset 8
; 6860-NEXT: .cfi_offset %ebp, -8
; 6860-NEXT: movl %esp, %ebp
; 6860-NEXT: .cfi_def_cfa_register %ebp
; 6860-NEXT: andl $-8, %esp
; 6860-NEXT: subl $24, %esp
; 6860-NEXT: movw var_22, %dx
; 6860-NEXT: movzwl var_27, %ecx
; 6860-NEXT: movw %cx, %ax
; 6860-NEXT: xorw %ax, %dx
; 6860-NEXT: # implicit-def: $eax
; 6860-NEXT: movw %dx, %ax
; 6860-NEXT: xorl %ecx, %eax
; 6860-NEXT: # kill: def $ax killed $ax killed $eax
; 6860-NEXT: movzwl %ax, %eax
; 6860-NEXT: movl %eax, {{[0-9]+}}(%esp)
; 6860-NEXT: movl $0, {{[0-9]+}}(%esp)
; 6860-NEXT: movw var_22, %dx
; 6860-NEXT: movzwl var_27, %eax
; 6860-NEXT: movw %ax, %cx
; 6860-NEXT: xorw %cx, %dx
; 6860-NEXT: # implicit-def: $ecx
; 6860-NEXT: movw %dx, %cx
; 6860-NEXT: xorl %eax, %ecx
; 6860-NEXT: # kill: def $cx killed $cx killed $ecx
; 6860-NEXT: movzwl %cx, %edx
; 6860-NEXT: movb %al, %cl
; 6860-NEXT: addb $30, %cl
; 6860-NEXT: movb %cl, {{[-0-9]+}}(%e{{[sb]}}p) # 1-byte Spill
; 6860-NEXT: xorl %eax, %eax
; 6860-NEXT: shrdl %cl, %eax, %edx
; 6860-NEXT: movb {{[-0-9]+}}(%e{{[sb]}}p), %cl # 1-byte Reload
; 6860-NEXT: movl %edx, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; 6860-NEXT: testb $32, %cl
; 6860-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; 6860-NEXT: jne .LBB0_2
; 6860-NEXT: # %bb.1: # %bb
; 6860-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; 6860-NEXT: movl %eax, {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Spill
; 6860-NEXT: .LBB0_2: # %bb
; 6860-NEXT: movl {{[-0-9]+}}(%e{{[sb]}}p), %eax # 4-byte Reload
; 6860-NEXT: movb %al, %cl
; 6860-NEXT: # implicit-def: $eax
; 6860-NEXT: movb %cl, (%eax)
; 6860-NEXT: movl %ebp, %esp
; 6860-NEXT: popl %ebp
; 6860-NEXT: .cfi_def_cfa %esp, 4
; 6860-NEXT: retl
;
; X64-LABEL: foo:
; X64: # %bb.0: # %bb
; X64-NEXT: movzwl {{.*}}(%rip), %ecx
; X64-NEXT: movzwl {{.*}}(%rip), %eax
; X64-NEXT: xorw %cx, %ax
; X64-NEXT: xorl %ecx, %eax
; X64-NEXT: movzwl %ax, %eax
; X64-NEXT: movq %rax, -{{[0-9]+}}(%rsp)
; X64-NEXT: addb $30, %cl
; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: shrq %cl, %rax
; X64-NEXT: movb %al, (%rax)
; X64-NEXT: retq
;
; 686-LABEL: foo:
; 686: # %bb.0: # %bb
; 686-NEXT: pushl %ebp
; 686-NEXT: .cfi_def_cfa_offset 8
; 686-NEXT: .cfi_offset %ebp, -8
; 686-NEXT: movl %esp, %ebp
; 686-NEXT: .cfi_def_cfa_register %ebp
; 686-NEXT: andl $-8, %esp
; 686-NEXT: subl $8, %esp
; 686-NEXT: movzwl var_27, %ecx
; 686-NEXT: movzwl var_22, %eax
; 686-NEXT: xorw %cx, %ax
; 686-NEXT: xorl %ecx, %eax
; 686-NEXT: movzwl %ax, %eax
; 686-NEXT: movl %eax, (%esp)
; 686-NEXT: movl $0, {{[0-9]+}}(%esp)
; 686-NEXT: addb $30, %cl
; 686-NEXT: xorl %edx, %edx
; 686-NEXT: shrdl %cl, %edx, %eax
; 686-NEXT: testb $32, %cl
; 686-NEXT: jne .LBB0_2
; 686-NEXT: # %bb.1: # %bb
; 686-NEXT: movl %eax, %edx
; 686-NEXT: .LBB0_2: # %bb
; 686-NEXT: movb %dl, (%eax)
; 686-NEXT: movl %ebp, %esp
; 686-NEXT: popl %ebp
; 686-NEXT: .cfi_def_cfa %esp, 4
; 686-NEXT: retl
bb:
%tmp = alloca i64, align 8
%tmp1 = load i16, i16* @var_22, align 2
%tmp2 = zext i16 %tmp1 to i32
%tmp3 = load i16, i16* @var_27, align 2
%tmp4 = zext i16 %tmp3 to i32
%tmp5 = xor i32 %tmp2, %tmp4
%tmp6 = load i16, i16* @var_27, align 2
%tmp7 = zext i16 %tmp6 to i32
%tmp8 = xor i32 %tmp5, %tmp7
%tmp9 = sext i32 %tmp8 to i64
store i64 %tmp9, i64* %tmp, align 8
%tmp10 = load i16, i16* @var_22, align 2
%tmp11 = zext i16 %tmp10 to i32
%tmp12 = load i16, i16* @var_27, align 2
%tmp13 = zext i16 %tmp12 to i32
%tmp14 = xor i32 %tmp11, %tmp13
%tmp15 = load i16, i16* @var_27, align 2
%tmp16 = zext i16 %tmp15 to i32
%tmp17 = xor i32 %tmp14, %tmp16
%tmp18 = sext i32 %tmp17 to i64
%tmp19 = load i16, i16* @var_27, align 2
%tmp20 = zext i16 %tmp19 to i32
%tmp21 = sub nsw i32 %tmp20, 16610
%tmp22 = zext i32 %tmp21 to i64
%tmp23 = ashr i64 %tmp18, %tmp22
%tmp24 = trunc i64 %tmp23 to i8
store i8 %tmp24, i8* undef, align 1
ret void
}