; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-- < %s -pre-RA-sched=list-ilp | FileCheck %s --check-prefix=ILP
; RUN: llc -mtriple=x86_64-- < %s -pre-RA-sched=list-hybrid | FileCheck %s --check-prefix=HYBRID
; RUN: llc -mtriple=x86_64-- < %s -pre-RA-sched=list-burr | FileCheck %s --check-prefix=BURR
; RUN: llc -mtriple=x86_64-- < %s -pre-RA-sched=source | FileCheck %s --check-prefix=SRC
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39452.
; RUN: llc -mtriple=x86_64-- < %s -pre-RA-sched=linearize -verify-machineinstrs=0 | FileCheck %s --check-prefix=LIN
; PR22304 https://llvm.org/bugs/show_bug.cgi?id=22304
; Tests checking backtracking in source scheduler. llc used to crash on them.
define i256 @test1(i256 %a) nounwind {
; ILP-LABEL: test1:
; ILP: # %bb.0:
; ILP-NEXT: movq %rdi, %rax
; ILP-NEXT: xorps %xmm0, %xmm0
; ILP-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; ILP-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; ILP-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; ILP-NEXT: leal (%rsi,%rsi), %ecx
; ILP-NEXT: addb $3, %cl
; ILP-NEXT: movq $0, -{{[0-9]+}}(%rsp)
; ILP-NEXT: movq $1, -{{[0-9]+}}(%rsp)
; ILP-NEXT: movl %ecx, %edx
; ILP-NEXT: shrb $3, %dl
; ILP-NEXT: andb $24, %dl
; ILP-NEXT: negb %dl
; ILP-NEXT: movsbq %dl, %rdx
; ILP-NEXT: movq -24(%rsp,%rdx), %rsi
; ILP-NEXT: movq -16(%rsp,%rdx), %rdi
; ILP-NEXT: shldq %cl, %rsi, %rdi
; ILP-NEXT: movq -40(%rsp,%rdx), %r8
; ILP-NEXT: movq -32(%rsp,%rdx), %rdx
; ILP-NEXT: movq %r8, %r9
; ILP-NEXT: shlq %cl, %r9
; ILP-NEXT: movq %rdx, %r10
; ILP-NEXT: shldq %cl, %r8, %r10
; ILP-NEXT: movq %rdi, 24(%rax)
; ILP-NEXT: movq %r10, 8(%rax)
; ILP-NEXT: movq %r9, (%rax)
; ILP-NEXT: shlq %cl, %rsi
; ILP-NEXT: notb %cl
; ILP-NEXT: shrq %rdx
; ILP-NEXT: # kill: def $cl killed $cl killed $ecx
; ILP-NEXT: shrq %cl, %rdx
; ILP-NEXT: orq %rsi, %rdx
; ILP-NEXT: movq %rdx, 16(%rax)
; ILP-NEXT: retq
;
; HYBRID-LABEL: test1:
; HYBRID: # %bb.0:
; HYBRID-NEXT: movq %rdi, %rax
; HYBRID-NEXT: xorps %xmm0, %xmm0
; HYBRID-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; HYBRID-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; HYBRID-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; HYBRID-NEXT: movq $0, -{{[0-9]+}}(%rsp)
; HYBRID-NEXT: movq $1, -{{[0-9]+}}(%rsp)
; HYBRID-NEXT: leal (%rsi,%rsi), %ecx
; HYBRID-NEXT: addb $3, %cl
; HYBRID-NEXT: movl %ecx, %edx
; HYBRID-NEXT: shrb $3, %dl
; HYBRID-NEXT: andb $24, %dl
; HYBRID-NEXT: negb %dl
; HYBRID-NEXT: movsbq %dl, %rdx
; HYBRID-NEXT: movq -24(%rsp,%rdx), %rsi
; HYBRID-NEXT: movq -16(%rsp,%rdx), %rdi
; HYBRID-NEXT: shldq %cl, %rsi, %rdi
; HYBRID-NEXT: movq %rdi, 24(%rax)
; HYBRID-NEXT: movq -40(%rsp,%rdx), %rdi
; HYBRID-NEXT: movq -32(%rsp,%rdx), %rdx
; HYBRID-NEXT: movq %rdx, %r8
; HYBRID-NEXT: shldq %cl, %rdi, %r8
; HYBRID-NEXT: movq %r8, 8(%rax)
; HYBRID-NEXT: shlq %cl, %rdi
; HYBRID-NEXT: movq %rdi, (%rax)
; HYBRID-NEXT: shlq %cl, %rsi
; HYBRID-NEXT: notb %cl
; HYBRID-NEXT: shrq %rdx
; HYBRID-NEXT: # kill: def $cl killed $cl killed $ecx
; HYBRID-NEXT: shrq %cl, %rdx
; HYBRID-NEXT: orq %rsi, %rdx
; HYBRID-NEXT: movq %rdx, 16(%rax)
; HYBRID-NEXT: retq
;
; BURR-LABEL: test1:
; BURR: # %bb.0:
; BURR-NEXT: movq %rdi, %rax
; BURR-NEXT: xorps %xmm0, %xmm0
; BURR-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; BURR-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; BURR-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; BURR-NEXT: movq $0, -{{[0-9]+}}(%rsp)
; BURR-NEXT: movq $1, -{{[0-9]+}}(%rsp)
; BURR-NEXT: leal (%rsi,%rsi), %ecx
; BURR-NEXT: addb $3, %cl
; BURR-NEXT: movl %ecx, %edx
; BURR-NEXT: shrb $3, %dl
; BURR-NEXT: andb $24, %dl
; BURR-NEXT: negb %dl
; BURR-NEXT: movsbq %dl, %rdx
; BURR-NEXT: movq -24(%rsp,%rdx), %rsi
; BURR-NEXT: movq -16(%rsp,%rdx), %rdi
; BURR-NEXT: shldq %cl, %rsi, %rdi
; BURR-NEXT: movq %rdi, 24(%rax)
; BURR-NEXT: movq -40(%rsp,%rdx), %rdi
; BURR-NEXT: movq -32(%rsp,%rdx), %rdx
; BURR-NEXT: movq %rdx, %r8
; BURR-NEXT: shldq %cl, %rdi, %r8
; BURR-NEXT: movq %r8, 8(%rax)
; BURR-NEXT: shlq %cl, %rdi
; BURR-NEXT: movq %rdi, (%rax)
; BURR-NEXT: shlq %cl, %rsi
; BURR-NEXT: notb %cl
; BURR-NEXT: shrq %rdx
; BURR-NEXT: # kill: def $cl killed $cl killed $ecx
; BURR-NEXT: shrq %cl, %rdx
; BURR-NEXT: orq %rsi, %rdx
; BURR-NEXT: movq %rdx, 16(%rax)
; BURR-NEXT: retq
;
; SRC-LABEL: test1:
; SRC: # %bb.0:
; SRC-NEXT: movq %rdi, %rax
; SRC-NEXT: leal (%rsi,%rsi), %edx
; SRC-NEXT: addb $3, %dl
; SRC-NEXT: xorps %xmm0, %xmm0
; SRC-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; SRC-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; SRC-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; SRC-NEXT: movq $0, -{{[0-9]+}}(%rsp)
; SRC-NEXT: movq $1, -{{[0-9]+}}(%rsp)
; SRC-NEXT: movl %edx, %ecx
; SRC-NEXT: shrb $3, %cl
; SRC-NEXT: andb $24, %cl
; SRC-NEXT: negb %cl
; SRC-NEXT: movsbq %cl, %rsi
; SRC-NEXT: movq -24(%rsp,%rsi), %rdi
; SRC-NEXT: movq %rdi, %r8
; SRC-NEXT: movl %edx, %ecx
; SRC-NEXT: shlq %cl, %r8
; SRC-NEXT: notb %cl
; SRC-NEXT: movq -40(%rsp,%rsi), %r9
; SRC-NEXT: movq -32(%rsp,%rsi), %r10
; SRC-NEXT: movq %r10, %r11
; SRC-NEXT: shrq %r11
; SRC-NEXT: shrq %cl, %r11
; SRC-NEXT: orq %r8, %r11
; SRC-NEXT: movq -16(%rsp,%rsi), %rsi
; SRC-NEXT: movl %edx, %ecx
; SRC-NEXT: shldq %cl, %rdi, %rsi
; SRC-NEXT: movq %r9, %rdi
; SRC-NEXT: shlq %cl, %rdi
; SRC-NEXT: shldq %cl, %r9, %r10
; SRC-NEXT: movq %rsi, 24(%rax)
; SRC-NEXT: movq %r10, 8(%rax)
; SRC-NEXT: movq %rdi, (%rax)
; SRC-NEXT: movq %r11, 16(%rax)
; SRC-NEXT: retq
;
; LIN-LABEL: test1:
; LIN: # %bb.0:
; LIN-NEXT: movq %rdi, %rax
; LIN-NEXT: leal (%rsi,%rsi), %edx
; LIN-NEXT: addb $3, %dl
; LIN-NEXT: movl %edx, %ecx
; LIN-NEXT: shrb $3, %cl
; LIN-NEXT: andb $24, %cl
; LIN-NEXT: negb %cl
; LIN-NEXT: movsbq %cl, %rsi
; LIN-NEXT: xorps %xmm0, %xmm0
; LIN-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; LIN-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; LIN-NEXT: movq $1, -{{[0-9]+}}(%rsp)
; LIN-NEXT: movq $0, -{{[0-9]+}}(%rsp)
; LIN-NEXT: movaps %xmm0, -{{[0-9]+}}(%rsp)
; LIN-NEXT: movq -40(%rsp,%rsi), %rdi
; LIN-NEXT: movq %rdi, %r8
; LIN-NEXT: movl %edx, %ecx
; LIN-NEXT: shlq %cl, %r8
; LIN-NEXT: movq %r8, (%rax)
; LIN-NEXT: movq -32(%rsp,%rsi), %r8
; LIN-NEXT: movq %r8, %r9
; LIN-NEXT: shldq %cl, %rdi, %r9
; LIN-NEXT: movq %r9, 8(%rax)
; LIN-NEXT: movq -24(%rsp,%rsi), %rdi
; LIN-NEXT: movq %rdi, %r9
; LIN-NEXT: shlq %cl, %r9
; LIN-NEXT: shrq %r8
; LIN-NEXT: notb %cl
; LIN-NEXT: shrq %cl, %r8
; LIN-NEXT: orq %r9, %r8
; LIN-NEXT: movq %r8, 16(%rax)
; LIN-NEXT: movq -16(%rsp,%rsi), %rsi
; LIN-NEXT: movl %edx, %ecx
; LIN-NEXT: shldq %cl, %rdi, %rsi
; LIN-NEXT: movq %rsi, 24(%rax)
; LIN-NEXT: retq
%b = add i256 %a, 1
%m = shl i256 %b, 1
%p = add i256 %m, 1
%v = lshr i256 %b, %p
%t = trunc i256 %v to i1
%c = shl i256 1, %p
%f = select i1 %t, i256 undef, i256 %c
ret i256 %f
}
define i256 @test2(i256 %a) nounwind {
; ILP-LABEL: test2:
; ILP: # %bb.0:
; ILP-NEXT: movq %rdi, %rax
; ILP-NEXT: xorps %xmm0, %xmm0
; ILP-NEXT: movaps %xmm0, 16(%rdi)
; ILP-NEXT: xorl %edi, %edi
; ILP-NEXT: movq %rsi, %r11
; ILP-NEXT: negq %r11
; ILP-NEXT: movl $0, %r10d
; ILP-NEXT: sbbq %rdx, %r10
; ILP-NEXT: movl $0, %r9d
; ILP-NEXT: sbbq %rcx, %r9
; ILP-NEXT: sbbq %r8, %rdi
; ILP-NEXT: andq %r8, %rdi
; ILP-NEXT: bsrq %rdi, %r8
; ILP-NEXT: andq %rdx, %r10
; ILP-NEXT: bsrq %r10, %rdx
; ILP-NEXT: xorq $63, %r8
; ILP-NEXT: andq %rcx, %r9
; ILP-NEXT: bsrq %r9, %rcx
; ILP-NEXT: xorq $63, %rcx
; ILP-NEXT: orq $64, %rcx
; ILP-NEXT: testq %rdi, %rdi
; ILP-NEXT: cmovneq %r8, %rcx
; ILP-NEXT: xorq $63, %rdx
; ILP-NEXT: andq %rsi, %r11
; ILP-NEXT: movl $127, %esi
; ILP-NEXT: bsrq %r11, %r8
; ILP-NEXT: cmoveq %rsi, %r8
; ILP-NEXT: xorq $63, %r8
; ILP-NEXT: addq $64, %r8
; ILP-NEXT: testq %r10, %r10
; ILP-NEXT: cmovneq %rdx, %r8
; ILP-NEXT: subq $-128, %r8
; ILP-NEXT: orq %rdi, %r9
; ILP-NEXT: cmovneq %rcx, %r8
; ILP-NEXT: movq %r8, (%rax)
; ILP-NEXT: movq $0, 8(%rax)
; ILP-NEXT: retq
;
; HYBRID-LABEL: test2:
; HYBRID: # %bb.0:
; HYBRID-NEXT: movq %rdi, %rax
; HYBRID-NEXT: xorps %xmm0, %xmm0
; HYBRID-NEXT: movaps %xmm0, 16(%rdi)
; HYBRID-NEXT: xorl %edi, %edi
; HYBRID-NEXT: movq %rsi, %r11
; HYBRID-NEXT: negq %r11
; HYBRID-NEXT: movl $0, %r10d
; HYBRID-NEXT: sbbq %rdx, %r10
; HYBRID-NEXT: movl $0, %r9d
; HYBRID-NEXT: sbbq %rcx, %r9
; HYBRID-NEXT: sbbq %r8, %rdi
; HYBRID-NEXT: andq %r8, %rdi
; HYBRID-NEXT: bsrq %rdi, %r8
; HYBRID-NEXT: xorq $63, %r8
; HYBRID-NEXT: andq %rcx, %r9
; HYBRID-NEXT: bsrq %r9, %rcx
; HYBRID-NEXT: xorq $63, %rcx
; HYBRID-NEXT: orq $64, %rcx
; HYBRID-NEXT: testq %rdi, %rdi
; HYBRID-NEXT: cmovneq %r8, %rcx
; HYBRID-NEXT: andq %rdx, %r10
; HYBRID-NEXT: bsrq %r10, %rdx
; HYBRID-NEXT: xorq $63, %rdx
; HYBRID-NEXT: andq %rsi, %r11
; HYBRID-NEXT: movl $127, %esi
; HYBRID-NEXT: bsrq %r11, %r8
; HYBRID-NEXT: cmoveq %rsi, %r8
; HYBRID-NEXT: xorq $63, %r8
; HYBRID-NEXT: addq $64, %r8
; HYBRID-NEXT: testq %r10, %r10
; HYBRID-NEXT: cmovneq %rdx, %r8
; HYBRID-NEXT: subq $-128, %r8
; HYBRID-NEXT: orq %rdi, %r9
; HYBRID-NEXT: cmovneq %rcx, %r8
; HYBRID-NEXT: movq %r8, (%rax)
; HYBRID-NEXT: movq $0, 8(%rax)
; HYBRID-NEXT: retq
;
; BURR-LABEL: test2:
; BURR: # %bb.0:
; BURR-NEXT: movq %rdi, %rax
; BURR-NEXT: xorps %xmm0, %xmm0
; BURR-NEXT: movaps %xmm0, 16(%rdi)
; BURR-NEXT: xorl %edi, %edi
; BURR-NEXT: movq %rsi, %r11
; BURR-NEXT: negq %r11
; BURR-NEXT: movl $0, %r10d
; BURR-NEXT: sbbq %rdx, %r10
; BURR-NEXT: movl $0, %r9d
; BURR-NEXT: sbbq %rcx, %r9
; BURR-NEXT: sbbq %r8, %rdi
; BURR-NEXT: andq %r8, %rdi
; BURR-NEXT: bsrq %rdi, %r8
; BURR-NEXT: xorq $63, %r8
; BURR-NEXT: andq %rcx, %r9
; BURR-NEXT: bsrq %r9, %rcx
; BURR-NEXT: xorq $63, %rcx
; BURR-NEXT: orq $64, %rcx
; BURR-NEXT: testq %rdi, %rdi
; BURR-NEXT: cmovneq %r8, %rcx
; BURR-NEXT: andq %rdx, %r10
; BURR-NEXT: bsrq %r10, %rdx
; BURR-NEXT: xorq $63, %rdx
; BURR-NEXT: andq %rsi, %r11
; BURR-NEXT: movl $127, %esi
; BURR-NEXT: bsrq %r11, %r8
; BURR-NEXT: cmoveq %rsi, %r8
; BURR-NEXT: xorq $63, %r8
; BURR-NEXT: addq $64, %r8
; BURR-NEXT: testq %r10, %r10
; BURR-NEXT: cmovneq %rdx, %r8
; BURR-NEXT: subq $-128, %r8
; BURR-NEXT: orq %rdi, %r9
; BURR-NEXT: cmovneq %rcx, %r8
; BURR-NEXT: movq %r8, (%rax)
; BURR-NEXT: movq $0, 8(%rax)
; BURR-NEXT: retq
;
; SRC-LABEL: test2:
; SRC: # %bb.0:
; SRC-NEXT: movq %rdi, %rax
; SRC-NEXT: xorl %edi, %edi
; SRC-NEXT: movq %rsi, %r11
; SRC-NEXT: negq %r11
; SRC-NEXT: movl $0, %r10d
; SRC-NEXT: sbbq %rdx, %r10
; SRC-NEXT: movl $0, %r9d
; SRC-NEXT: sbbq %rcx, %r9
; SRC-NEXT: sbbq %r8, %rdi
; SRC-NEXT: andq %rdx, %r10
; SRC-NEXT: andq %rcx, %r9
; SRC-NEXT: andq %r8, %rdi
; SRC-NEXT: andq %rsi, %r11
; SRC-NEXT: bsrq %rdi, %rcx
; SRC-NEXT: xorq $63, %rcx
; SRC-NEXT: bsrq %r9, %rdx
; SRC-NEXT: xorq $63, %rdx
; SRC-NEXT: orq $64, %rdx
; SRC-NEXT: testq %rdi, %rdi
; SRC-NEXT: cmovneq %rcx, %rdx
; SRC-NEXT: bsrq %r10, %rcx
; SRC-NEXT: xorq $63, %rcx
; SRC-NEXT: bsrq %r11, %rsi
; SRC-NEXT: movl $127, %r8d
; SRC-NEXT: cmovneq %rsi, %r8
; SRC-NEXT: xorq $63, %r8
; SRC-NEXT: addq $64, %r8
; SRC-NEXT: testq %r10, %r10
; SRC-NEXT: cmovneq %rcx, %r8
; SRC-NEXT: subq $-128, %r8
; SRC-NEXT: orq %r9, %rdi
; SRC-NEXT: cmovneq %rdx, %r8
; SRC-NEXT: xorps %xmm0, %xmm0
; SRC-NEXT: movaps %xmm0, 16(%rax)
; SRC-NEXT: movq %r8, (%rax)
; SRC-NEXT: movq $0, 8(%rax)
; SRC-NEXT: retq
;
; LIN-LABEL: test2:
; LIN: # %bb.0:
; LIN-NEXT: movq %rdi, %rax
; LIN-NEXT: xorps %xmm0, %xmm0
; LIN-NEXT: movaps %xmm0, 16(%rdi)
; LIN-NEXT: movq %rsi, %rdi
; LIN-NEXT: negq %rdi
; LIN-NEXT: andq %rsi, %rdi
; LIN-NEXT: bsrq %rdi, %rsi
; LIN-NEXT: movl $127, %edi
; LIN-NEXT: cmovneq %rsi, %rdi
; LIN-NEXT: xorq $63, %rdi
; LIN-NEXT: addq $64, %rdi
; LIN-NEXT: xorl %esi, %esi
; LIN-NEXT: movl $0, %r9d
; LIN-NEXT: sbbq %rdx, %r9
; LIN-NEXT: andq %rdx, %r9
; LIN-NEXT: bsrq %r9, %rdx
; LIN-NEXT: xorq $63, %rdx
; LIN-NEXT: testq %r9, %r9
; LIN-NEXT: cmoveq %rdi, %rdx
; LIN-NEXT: subq $-128, %rdx
; LIN-NEXT: movl $0, %edi
; LIN-NEXT: sbbq %rcx, %rdi
; LIN-NEXT: andq %rcx, %rdi
; LIN-NEXT: bsrq %rdi, %rcx
; LIN-NEXT: xorq $63, %rcx
; LIN-NEXT: orq $64, %rcx
; LIN-NEXT: sbbq %r8, %rsi
; LIN-NEXT: andq %r8, %rsi
; LIN-NEXT: bsrq %rsi, %r8
; LIN-NEXT: xorq $63, %r8
; LIN-NEXT: testq %rsi, %rsi
; LIN-NEXT: cmoveq %rcx, %r8
; LIN-NEXT: orq %rdi, %rsi
; LIN-NEXT: cmoveq %rdx, %r8
; LIN-NEXT: movq %r8, (%rax)
; LIN-NEXT: movq $0, 8(%rax)
; LIN-NEXT: retq
%b = sub i256 0, %a
%c = and i256 %b, %a
%d = call i256 @llvm.ctlz.i256(i256 %c, i1 false)
ret i256 %d
}
define i256 @test3(i256 %n) nounwind {
; ILP-LABEL: test3:
; ILP: # %bb.0:
; ILP-NEXT: pushq %rbx
; ILP-NEXT: movq %rdi, %rax
; ILP-NEXT: xorps %xmm0, %xmm0
; ILP-NEXT: movaps %xmm0, 16(%rdi)
; ILP-NEXT: xorl %r9d, %r9d
; ILP-NEXT: movq %rsi, %rdi
; ILP-NEXT: negq %rdi
; ILP-NEXT: movl $0, %r10d
; ILP-NEXT: sbbq %rdx, %r10
; ILP-NEXT: movl $0, %r11d
; ILP-NEXT: sbbq %rcx, %r11
; ILP-NEXT: sbbq %r8, %r9
; ILP-NEXT: notq %r8
; ILP-NEXT: andq %r9, %r8
; ILP-NEXT: bsrq %r8, %rbx
; ILP-NEXT: notq %rdx
; ILP-NEXT: andq %r10, %rdx
; ILP-NEXT: bsrq %rdx, %r9
; ILP-NEXT: xorq $63, %rbx
; ILP-NEXT: notq %rcx
; ILP-NEXT: andq %r11, %rcx
; ILP-NEXT: bsrq %rcx, %r10
; ILP-NEXT: xorq $63, %r10
; ILP-NEXT: orq $64, %r10
; ILP-NEXT: notq %rsi
; ILP-NEXT: testq %r8, %r8
; ILP-NEXT: cmovneq %rbx, %r10
; ILP-NEXT: xorq $63, %r9
; ILP-NEXT: andq %rdi, %rsi
; ILP-NEXT: movl $127, %edi
; ILP-NEXT: bsrq %rsi, %rsi
; ILP-NEXT: cmoveq %rdi, %rsi
; ILP-NEXT: xorq $63, %rsi
; ILP-NEXT: addq $64, %rsi
; ILP-NEXT: testq %rdx, %rdx
; ILP-NEXT: cmovneq %r9, %rsi
; ILP-NEXT: subq $-128, %rsi
; ILP-NEXT: orq %r8, %rcx
; ILP-NEXT: cmovneq %r10, %rsi
; ILP-NEXT: movq %rsi, (%rax)
; ILP-NEXT: movq $0, 8(%rax)
; ILP-NEXT: popq %rbx
; ILP-NEXT: retq
;
; HYBRID-LABEL: test3:
; HYBRID: # %bb.0:
; HYBRID-NEXT: pushq %rbx
; HYBRID-NEXT: movq %rdi, %rax
; HYBRID-NEXT: xorps %xmm0, %xmm0
; HYBRID-NEXT: movaps %xmm0, 16(%rdi)
; HYBRID-NEXT: xorl %r9d, %r9d
; HYBRID-NEXT: movq %rsi, %rdi
; HYBRID-NEXT: negq %rdi
; HYBRID-NEXT: movl $0, %r10d
; HYBRID-NEXT: sbbq %rdx, %r10
; HYBRID-NEXT: movl $0, %r11d
; HYBRID-NEXT: sbbq %rcx, %r11
; HYBRID-NEXT: sbbq %r8, %r9
; HYBRID-NEXT: notq %r8
; HYBRID-NEXT: andq %r9, %r8
; HYBRID-NEXT: bsrq %r8, %rbx
; HYBRID-NEXT: xorq $63, %rbx
; HYBRID-NEXT: notq %rcx
; HYBRID-NEXT: andq %r11, %rcx
; HYBRID-NEXT: bsrq %rcx, %r9
; HYBRID-NEXT: xorq $63, %r9
; HYBRID-NEXT: orq $64, %r9
; HYBRID-NEXT: testq %r8, %r8
; HYBRID-NEXT: cmovneq %rbx, %r9
; HYBRID-NEXT: notq %rdx
; HYBRID-NEXT: andq %r10, %rdx
; HYBRID-NEXT: bsrq %rdx, %r10
; HYBRID-NEXT: xorq $63, %r10
; HYBRID-NEXT: notq %rsi
; HYBRID-NEXT: andq %rdi, %rsi
; HYBRID-NEXT: movl $127, %edi
; HYBRID-NEXT: bsrq %rsi, %rsi
; HYBRID-NEXT: cmoveq %rdi, %rsi
; HYBRID-NEXT: xorq $63, %rsi
; HYBRID-NEXT: addq $64, %rsi
; HYBRID-NEXT: testq %rdx, %rdx
; HYBRID-NEXT: cmovneq %r10, %rsi
; HYBRID-NEXT: subq $-128, %rsi
; HYBRID-NEXT: orq %r8, %rcx
; HYBRID-NEXT: cmovneq %r9, %rsi
; HYBRID-NEXT: movq %rsi, (%rax)
; HYBRID-NEXT: movq $0, 8(%rax)
; HYBRID-NEXT: popq %rbx
; HYBRID-NEXT: retq
;
; BURR-LABEL: test3:
; BURR: # %bb.0:
; BURR-NEXT: pushq %rbx
; BURR-NEXT: movq %rdi, %rax
; BURR-NEXT: xorps %xmm0, %xmm0
; BURR-NEXT: movaps %xmm0, 16(%rdi)
; BURR-NEXT: xorl %r9d, %r9d
; BURR-NEXT: movq %rsi, %rdi
; BURR-NEXT: negq %rdi
; BURR-NEXT: movl $0, %r10d
; BURR-NEXT: sbbq %rdx, %r10
; BURR-NEXT: movl $0, %r11d
; BURR-NEXT: sbbq %rcx, %r11
; BURR-NEXT: sbbq %r8, %r9
; BURR-NEXT: notq %r8
; BURR-NEXT: andq %r9, %r8
; BURR-NEXT: bsrq %r8, %rbx
; BURR-NEXT: xorq $63, %rbx
; BURR-NEXT: notq %rcx
; BURR-NEXT: andq %r11, %rcx
; BURR-NEXT: bsrq %rcx, %r9
; BURR-NEXT: xorq $63, %r9
; BURR-NEXT: orq $64, %r9
; BURR-NEXT: testq %r8, %r8
; BURR-NEXT: cmovneq %rbx, %r9
; BURR-NEXT: notq %rdx
; BURR-NEXT: andq %r10, %rdx
; BURR-NEXT: bsrq %rdx, %r10
; BURR-NEXT: xorq $63, %r10
; BURR-NEXT: notq %rsi
; BURR-NEXT: andq %rdi, %rsi
; BURR-NEXT: movl $127, %edi
; BURR-NEXT: bsrq %rsi, %rsi
; BURR-NEXT: cmoveq %rdi, %rsi
; BURR-NEXT: xorq $63, %rsi
; BURR-NEXT: addq $64, %rsi
; BURR-NEXT: testq %rdx, %rdx
; BURR-NEXT: cmovneq %r10, %rsi
; BURR-NEXT: subq $-128, %rsi
; BURR-NEXT: orq %r8, %rcx
; BURR-NEXT: cmovneq %r9, %rsi
; BURR-NEXT: movq %rsi, (%rax)
; BURR-NEXT: movq $0, 8(%rax)
; BURR-NEXT: popq %rbx
; BURR-NEXT: retq
;
; SRC-LABEL: test3:
; SRC: # %bb.0:
; SRC-NEXT: movq %rdi, %rax
; SRC-NEXT: movq %rsi, %rdi
; SRC-NEXT: notq %rdi
; SRC-NEXT: xorl %r9d, %r9d
; SRC-NEXT: negq %rsi
; SRC-NEXT: movl $0, %r10d
; SRC-NEXT: sbbq %rdx, %r10
; SRC-NEXT: notq %rdx
; SRC-NEXT: movl $0, %r11d
; SRC-NEXT: sbbq %rcx, %r11
; SRC-NEXT: notq %rcx
; SRC-NEXT: sbbq %r8, %r9
; SRC-NEXT: notq %r8
; SRC-NEXT: andq %r10, %rdx
; SRC-NEXT: andq %r11, %rcx
; SRC-NEXT: andq %r9, %r8
; SRC-NEXT: andq %rdi, %rsi
; SRC-NEXT: bsrq %r8, %rdi
; SRC-NEXT: xorq $63, %rdi
; SRC-NEXT: bsrq %rcx, %r9
; SRC-NEXT: xorq $63, %r9
; SRC-NEXT: orq $64, %r9
; SRC-NEXT: testq %r8, %r8
; SRC-NEXT: cmovneq %rdi, %r9
; SRC-NEXT: bsrq %rdx, %rdi
; SRC-NEXT: xorq $63, %rdi
; SRC-NEXT: bsrq %rsi, %rsi
; SRC-NEXT: movl $127, %r10d
; SRC-NEXT: cmovneq %rsi, %r10
; SRC-NEXT: xorq $63, %r10
; SRC-NEXT: addq $64, %r10
; SRC-NEXT: testq %rdx, %rdx
; SRC-NEXT: cmovneq %rdi, %r10
; SRC-NEXT: subq $-128, %r10
; SRC-NEXT: orq %rcx, %r8
; SRC-NEXT: cmovneq %r9, %r10
; SRC-NEXT: xorps %xmm0, %xmm0
; SRC-NEXT: movaps %xmm0, 16(%rax)
; SRC-NEXT: movq %r10, (%rax)
; SRC-NEXT: movq $0, 8(%rax)
; SRC-NEXT: retq
;
; LIN-LABEL: test3:
; LIN: # %bb.0:
; LIN-NEXT: movq %rdi, %rax
; LIN-NEXT: xorps %xmm0, %xmm0
; LIN-NEXT: movaps %xmm0, 16(%rdi)
; LIN-NEXT: movq %rsi, %rdi
; LIN-NEXT: negq %rdi
; LIN-NEXT: notq %rsi
; LIN-NEXT: andq %rdi, %rsi
; LIN-NEXT: bsrq %rsi, %rsi
; LIN-NEXT: movl $127, %r9d
; LIN-NEXT: cmovneq %rsi, %r9
; LIN-NEXT: xorq $63, %r9
; LIN-NEXT: addq $64, %r9
; LIN-NEXT: xorl %edi, %edi
; LIN-NEXT: movl $0, %esi
; LIN-NEXT: sbbq %rdx, %rsi
; LIN-NEXT: notq %rdx
; LIN-NEXT: andq %rsi, %rdx
; LIN-NEXT: bsrq %rdx, %rsi
; LIN-NEXT: xorq $63, %rsi
; LIN-NEXT: testq %rdx, %rdx
; LIN-NEXT: cmoveq %r9, %rsi
; LIN-NEXT: subq $-128, %rsi
; LIN-NEXT: movl $0, %edx
; LIN-NEXT: sbbq %rcx, %rdx
; LIN-NEXT: notq %rcx
; LIN-NEXT: andq %rdx, %rcx
; LIN-NEXT: bsrq %rcx, %rdx
; LIN-NEXT: xorq $63, %rdx
; LIN-NEXT: orq $64, %rdx
; LIN-NEXT: sbbq %r8, %rdi
; LIN-NEXT: notq %r8
; LIN-NEXT: andq %rdi, %r8
; LIN-NEXT: bsrq %r8, %rdi
; LIN-NEXT: xorq $63, %rdi
; LIN-NEXT: testq %r8, %r8
; LIN-NEXT: cmoveq %rdx, %rdi
; LIN-NEXT: orq %rcx, %r8
; LIN-NEXT: cmoveq %rsi, %rdi
; LIN-NEXT: movq %rdi, (%rax)
; LIN-NEXT: movq $0, 8(%rax)
; LIN-NEXT: retq
%m = sub i256 -1, %n
%x = sub i256 0, %n
%y = and i256 %x, %m
%z = call i256 @llvm.ctlz.i256(i256 %y, i1 false)
ret i256 %z
}
declare i256 @llvm.ctlz.i256(i256, i1) nounwind readnone
define i64 @test4(i64 %a, i64 %b) nounwind {
; ILP-LABEL: test4:
; ILP: # %bb.0:
; ILP-NEXT: xorl %eax, %eax
; ILP-NEXT: xorl %ecx, %ecx
; ILP-NEXT: incq %rsi
; ILP-NEXT: sete %cl
; ILP-NEXT: cmpq %rdi, %rsi
; ILP-NEXT: sbbq $0, %rcx
; ILP-NEXT: movl $0, %ecx
; ILP-NEXT: sbbq %rcx, %rcx
; ILP-NEXT: movl $0, %ecx
; ILP-NEXT: sbbq %rcx, %rcx
; ILP-NEXT: adcq $1, %rax
; ILP-NEXT: retq
;
; HYBRID-LABEL: test4:
; HYBRID: # %bb.0:
; HYBRID-NEXT: xorl %eax, %eax
; HYBRID-NEXT: xorl %ecx, %ecx
; HYBRID-NEXT: incq %rsi
; HYBRID-NEXT: sete %cl
; HYBRID-NEXT: cmpq %rdi, %rsi
; HYBRID-NEXT: sbbq $0, %rcx
; HYBRID-NEXT: movl $0, %ecx
; HYBRID-NEXT: sbbq %rcx, %rcx
; HYBRID-NEXT: movl $0, %ecx
; HYBRID-NEXT: sbbq %rcx, %rcx
; HYBRID-NEXT: adcq $1, %rax
; HYBRID-NEXT: retq
;
; BURR-LABEL: test4:
; BURR: # %bb.0:
; BURR-NEXT: xorl %eax, %eax
; BURR-NEXT: xorl %ecx, %ecx
; BURR-NEXT: incq %rsi
; BURR-NEXT: sete %cl
; BURR-NEXT: cmpq %rdi, %rsi
; BURR-NEXT: sbbq $0, %rcx
; BURR-NEXT: movl $0, %ecx
; BURR-NEXT: sbbq %rcx, %rcx
; BURR-NEXT: movl $0, %ecx
; BURR-NEXT: sbbq %rcx, %rcx
; BURR-NEXT: adcq $1, %rax
; BURR-NEXT: retq
;
; SRC-LABEL: test4:
; SRC: # %bb.0:
; SRC-NEXT: xorl %ecx, %ecx
; SRC-NEXT: incq %rsi
; SRC-NEXT: sete %cl
; SRC-NEXT: xorl %eax, %eax
; SRC-NEXT: cmpq %rdi, %rsi
; SRC-NEXT: sbbq $0, %rcx
; SRC-NEXT: movl $0, %ecx
; SRC-NEXT: sbbq %rcx, %rcx
; SRC-NEXT: movl $0, %ecx
; SRC-NEXT: sbbq %rcx, %rcx
; SRC-NEXT: adcq $1, %rax
; SRC-NEXT: retq
;
; LIN-LABEL: test4:
; LIN: # %bb.0:
; LIN-NEXT: xorl %eax, %eax
; LIN-NEXT: xorl %ecx, %ecx
; LIN-NEXT: incq %rsi
; LIN-NEXT: sete %cl
; LIN-NEXT: cmpq %rdi, %rsi
; LIN-NEXT: sbbq $0, %rcx
; LIN-NEXT: movl $0, %ecx
; LIN-NEXT: sbbq %rcx, %rcx
; LIN-NEXT: movl $0, %ecx
; LIN-NEXT: sbbq %rcx, %rcx
; LIN-NEXT: adcq $1, %rax
; LIN-NEXT: retq
%r = zext i64 %b to i256
%u = add i256 %r, 1
%w = and i256 %u, 1461501637330902918203684832716283019655932542975
%x = zext i64 %a to i256
%c = icmp uge i256 %w, %x
%y = select i1 %c, i64 0, i64 1
%z = add i64 %y, 1
ret i64 %z
}
define i256 @PR25498(i256 %a) nounwind {
; ILP-LABEL: PR25498:
; ILP: # %bb.0:
; ILP-NEXT: pushq %rbx
; ILP-NEXT: movq %rdi, %rax
; ILP-NEXT: xorl %edi, %edi
; ILP-NEXT: movq %rsi, %rbx
; ILP-NEXT: negq %rbx
; ILP-NEXT: movl $0, %r11d
; ILP-NEXT: sbbq %rdx, %r11
; ILP-NEXT: movl $0, %r9d
; ILP-NEXT: sbbq %rcx, %r9
; ILP-NEXT: movl $0, %r10d
; ILP-NEXT: sbbq %r8, %r10
; ILP-NEXT: orq %r8, %rdx
; ILP-NEXT: orq %rcx, %rsi
; ILP-NEXT: orq %rdx, %rsi
; ILP-NEXT: je .LBB4_1
; ILP-NEXT: # %bb.2: # %cond.false
; ILP-NEXT: bsrq %r11, %rdx
; ILP-NEXT: bsrq %r10, %rcx
; ILP-NEXT: xorq $63, %rcx
; ILP-NEXT: bsrq %r9, %rsi
; ILP-NEXT: xorq $63, %rsi
; ILP-NEXT: orq $64, %rsi
; ILP-NEXT: testq %r10, %r10
; ILP-NEXT: cmovneq %rcx, %rsi
; ILP-NEXT: xorq $63, %rdx
; ILP-NEXT: bsrq %rbx, %rcx
; ILP-NEXT: xorq $63, %rcx
; ILP-NEXT: orq $64, %rcx
; ILP-NEXT: testq %r11, %r11
; ILP-NEXT: cmovneq %rdx, %rcx
; ILP-NEXT: orq $128, %rcx
; ILP-NEXT: xorl %edi, %edi
; ILP-NEXT: orq %r10, %r9
; ILP-NEXT: cmovneq %rsi, %rcx
; ILP-NEXT: jmp .LBB4_3
; ILP-NEXT: .LBB4_1:
; ILP-NEXT: movl $256, %ecx # imm = 0x100
; ILP-NEXT: .LBB4_3: # %cond.end
; ILP-NEXT: movq %rcx, (%rax)
; ILP-NEXT: movq %rdi, 8(%rax)
; ILP-NEXT: movq %rdi, 16(%rax)
; ILP-NEXT: movq %rdi, 24(%rax)
; ILP-NEXT: popq %rbx
; ILP-NEXT: retq
;
; HYBRID-LABEL: PR25498:
; HYBRID: # %bb.0:
; HYBRID-NEXT: pushq %rbx
; HYBRID-NEXT: movq %rdi, %rax
; HYBRID-NEXT: xorl %edi, %edi
; HYBRID-NEXT: movq %rsi, %rbx
; HYBRID-NEXT: negq %rbx
; HYBRID-NEXT: movl $0, %r11d
; HYBRID-NEXT: sbbq %rdx, %r11
; HYBRID-NEXT: movl $0, %r9d
; HYBRID-NEXT: sbbq %rcx, %r9
; HYBRID-NEXT: movl $0, %r10d
; HYBRID-NEXT: sbbq %r8, %r10
; HYBRID-NEXT: orq %r8, %rdx
; HYBRID-NEXT: orq %rcx, %rsi
; HYBRID-NEXT: orq %rdx, %rsi
; HYBRID-NEXT: je .LBB4_1
; HYBRID-NEXT: # %bb.2: # %cond.false
; HYBRID-NEXT: bsrq %r10, %rcx
; HYBRID-NEXT: xorq $63, %rcx
; HYBRID-NEXT: bsrq %r9, %rdx
; HYBRID-NEXT: xorq $63, %rdx
; HYBRID-NEXT: orq $64, %rdx
; HYBRID-NEXT: testq %r10, %r10
; HYBRID-NEXT: cmovneq %rcx, %rdx
; HYBRID-NEXT: bsrq %r11, %rsi
; HYBRID-NEXT: xorq $63, %rsi
; HYBRID-NEXT: bsrq %rbx, %rcx
; HYBRID-NEXT: xorq $63, %rcx
; HYBRID-NEXT: orq $64, %rcx
; HYBRID-NEXT: testq %r11, %r11
; HYBRID-NEXT: cmovneq %rsi, %rcx
; HYBRID-NEXT: orq $128, %rcx
; HYBRID-NEXT: orq %r10, %r9
; HYBRID-NEXT: cmovneq %rdx, %rcx
; HYBRID-NEXT: xorl %edi, %edi
; HYBRID-NEXT: jmp .LBB4_3
; HYBRID-NEXT: .LBB4_1:
; HYBRID-NEXT: movl $256, %ecx # imm = 0x100
; HYBRID-NEXT: .LBB4_3: # %cond.end
; HYBRID-NEXT: movq %rcx, (%rax)
; HYBRID-NEXT: movq %rdi, 8(%rax)
; HYBRID-NEXT: movq %rdi, 16(%rax)
; HYBRID-NEXT: movq %rdi, 24(%rax)
; HYBRID-NEXT: popq %rbx
; HYBRID-NEXT: retq
;
; BURR-LABEL: PR25498:
; BURR: # %bb.0:
; BURR-NEXT: pushq %rbx
; BURR-NEXT: movq %rdi, %rax
; BURR-NEXT: xorl %edi, %edi
; BURR-NEXT: movq %rsi, %rbx
; BURR-NEXT: negq %rbx
; BURR-NEXT: movl $0, %r11d
; BURR-NEXT: sbbq %rdx, %r11
; BURR-NEXT: movl $0, %r9d
; BURR-NEXT: sbbq %rcx, %r9
; BURR-NEXT: movl $0, %r10d
; BURR-NEXT: sbbq %r8, %r10
; BURR-NEXT: orq %r8, %rdx
; BURR-NEXT: orq %rcx, %rsi
; BURR-NEXT: orq %rdx, %rsi
; BURR-NEXT: je .LBB4_1
; BURR-NEXT: # %bb.2: # %cond.false
; BURR-NEXT: bsrq %r10, %rcx
; BURR-NEXT: xorq $63, %rcx
; BURR-NEXT: bsrq %r9, %rdx
; BURR-NEXT: xorq $63, %rdx
; BURR-NEXT: orq $64, %rdx
; BURR-NEXT: testq %r10, %r10
; BURR-NEXT: cmovneq %rcx, %rdx
; BURR-NEXT: bsrq %r11, %rsi
; BURR-NEXT: xorq $63, %rsi
; BURR-NEXT: bsrq %rbx, %rcx
; BURR-NEXT: xorq $63, %rcx
; BURR-NEXT: orq $64, %rcx
; BURR-NEXT: testq %r11, %r11
; BURR-NEXT: cmovneq %rsi, %rcx
; BURR-NEXT: orq $128, %rcx
; BURR-NEXT: orq %r10, %r9
; BURR-NEXT: cmovneq %rdx, %rcx
; BURR-NEXT: xorl %edi, %edi
; BURR-NEXT: jmp .LBB4_3
; BURR-NEXT: .LBB4_1:
; BURR-NEXT: movl $256, %ecx # imm = 0x100
; BURR-NEXT: .LBB4_3: # %cond.end
; BURR-NEXT: movq %rcx, (%rax)
; BURR-NEXT: movq %rdi, 8(%rax)
; BURR-NEXT: movq %rdi, 16(%rax)
; BURR-NEXT: movq %rdi, 24(%rax)
; BURR-NEXT: popq %rbx
; BURR-NEXT: retq
;
; SRC-LABEL: PR25498:
; SRC: # %bb.0:
; SRC-NEXT: pushq %rbx
; SRC-NEXT: movq %rdi, %rax
; SRC-NEXT: xorl %edi, %edi
; SRC-NEXT: movq %rsi, %rbx
; SRC-NEXT: negq %rbx
; SRC-NEXT: movl $0, %r11d
; SRC-NEXT: sbbq %rdx, %r11
; SRC-NEXT: movl $0, %r9d
; SRC-NEXT: sbbq %rcx, %r9
; SRC-NEXT: movl $0, %r10d
; SRC-NEXT: sbbq %r8, %r10
; SRC-NEXT: orq %r8, %rdx
; SRC-NEXT: orq %rcx, %rsi
; SRC-NEXT: orq %rdx, %rsi
; SRC-NEXT: je .LBB4_1
; SRC-NEXT: # %bb.2: # %cond.false
; SRC-NEXT: bsrq %r10, %rcx
; SRC-NEXT: xorq $63, %rcx
; SRC-NEXT: bsrq %r9, %rdx
; SRC-NEXT: xorq $63, %rdx
; SRC-NEXT: orq $64, %rdx
; SRC-NEXT: testq %r10, %r10
; SRC-NEXT: cmovneq %rcx, %rdx
; SRC-NEXT: bsrq %r11, %rsi
; SRC-NEXT: xorq $63, %rsi
; SRC-NEXT: bsrq %rbx, %rcx
; SRC-NEXT: xorq $63, %rcx
; SRC-NEXT: orq $64, %rcx
; SRC-NEXT: testq %r11, %r11
; SRC-NEXT: cmovneq %rsi, %rcx
; SRC-NEXT: orq $128, %rcx
; SRC-NEXT: orq %r10, %r9
; SRC-NEXT: cmovneq %rdx, %rcx
; SRC-NEXT: xorl %edi, %edi
; SRC-NEXT: jmp .LBB4_3
; SRC-NEXT: .LBB4_1:
; SRC-NEXT: movl $256, %ecx # imm = 0x100
; SRC-NEXT: .LBB4_3: # %cond.end
; SRC-NEXT: movq %rcx, (%rax)
; SRC-NEXT: movq %rdi, 8(%rax)
; SRC-NEXT: movq %rdi, 16(%rax)
; SRC-NEXT: movq %rdi, 24(%rax)
; SRC-NEXT: popq %rbx
; SRC-NEXT: retq
;
; LIN-LABEL: PR25498:
; LIN: # %bb.0:
; LIN-NEXT: pushq %rbx
; LIN-NEXT: movq %rdi, %rax
; LIN-NEXT: movq %rsi, %rbx
; LIN-NEXT: negq %rbx
; LIN-NEXT: xorl %edi, %edi
; LIN-NEXT: movl $0, %r11d
; LIN-NEXT: sbbq %rdx, %r11
; LIN-NEXT: movl $0, %r9d
; LIN-NEXT: sbbq %rcx, %r9
; LIN-NEXT: movl $0, %r10d
; LIN-NEXT: sbbq %r8, %r10
; LIN-NEXT: orq %rcx, %rsi
; LIN-NEXT: orq %r8, %rdx
; LIN-NEXT: orq %rsi, %rdx
; LIN-NEXT: je .LBB4_1
; LIN-NEXT: # %bb.2: # %cond.false
; LIN-NEXT: bsrq %rbx, %rcx
; LIN-NEXT: xorq $63, %rcx
; LIN-NEXT: orq $64, %rcx
; LIN-NEXT: bsrq %r11, %rdx
; LIN-NEXT: xorq $63, %rdx
; LIN-NEXT: testq %r11, %r11
; LIN-NEXT: cmoveq %rcx, %rdx
; LIN-NEXT: orq $128, %rdx
; LIN-NEXT: bsrq %r9, %rsi
; LIN-NEXT: xorq $63, %rsi
; LIN-NEXT: orq $64, %rsi
; LIN-NEXT: bsrq %r10, %rcx
; LIN-NEXT: xorq $63, %rcx
; LIN-NEXT: testq %r10, %r10
; LIN-NEXT: cmoveq %rsi, %rcx
; LIN-NEXT: orq %r10, %r9
; LIN-NEXT: cmoveq %rdx, %rcx
; LIN-NEXT: xorl %edi, %edi
; LIN-NEXT: jmp .LBB4_3
; LIN-NEXT: .LBB4_1:
; LIN-NEXT: movl $256, %ecx # imm = 0x100
; LIN-NEXT: .LBB4_3: # %cond.end
; LIN-NEXT: movq %rcx, (%rax)
; LIN-NEXT: movq %rdi, 8(%rax)
; LIN-NEXT: movq %rdi, 16(%rax)
; LIN-NEXT: movq %rdi, 24(%rax)
; LIN-NEXT: popq %rbx
; LIN-NEXT: retq
%b = sub i256 0, %a
%cmpz = icmp eq i256 %b, 0
br i1 %cmpz, label %cond.end, label %cond.false
cond.false:
%d = call i256 @llvm.ctlz.i256(i256 %b, i1 true)
br label %cond.end
cond.end:
%ctz = phi i256 [ 256, %0 ], [ %d, %cond.false ]
ret i256 %ctz
}
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