| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc %s -o - -enable-shrink-wrap=true -no-x86-call-frame-opt | FileCheck %s --check-prefix=ENABLE |
| ; RUN: llc %s -o - -enable-shrink-wrap=false -no-x86-call-frame-opt | FileCheck %s --check-prefix=DISABLE |
| target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" |
| target triple = "i386-apple-macosx10.5" |
| |
| @a = common global i32 0, align 4 |
| @d = internal unnamed_addr global i1 false |
| @b = common global i32 0, align 4 |
| @e = common global i8 0, align 1 |
| @f = common global i8 0, align 1 |
| @c = common global i32 0, align 4 |
| @.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1 |
| |
| |
| ; Check that we are clobbering the flags when they are live-in of the |
| ; prologue block and the prologue needs to adjust the stack. |
| ; PR25607. |
| |
| define i32 @eflagsLiveInPrologue() #0 { |
| ; ENABLE-LABEL: eflagsLiveInPrologue: |
| ; ENABLE: ## %bb.0: ## %entry |
| ; ENABLE-NEXT: pushl %esi |
| ; ENABLE-NEXT: subl $8, %esp |
| ; ENABLE-NEXT: movl L_a$non_lazy_ptr, %eax |
| ; ENABLE-NEXT: cmpl $0, (%eax) |
| ; ENABLE-NEXT: je LBB0_2 |
| ; ENABLE-NEXT: ## %bb.1: ## %if.then |
| ; ENABLE-NEXT: movb $1, _d |
| ; ENABLE-NEXT: LBB0_2: ## %for.cond.preheader |
| ; ENABLE-NEXT: movl L_b$non_lazy_ptr, %eax |
| ; ENABLE-NEXT: movl (%eax), %eax |
| ; ENABLE-NEXT: testl %eax, %eax |
| ; ENABLE-NEXT: je LBB0_4 |
| ; ENABLE-NEXT: .p2align 4, 0x90 |
| ; ENABLE-NEXT: LBB0_3: ## %for.body |
| ; ENABLE-NEXT: ## =>This Inner Loop Header: Depth=1 |
| ; ENABLE-NEXT: jmp LBB0_3 |
| ; ENABLE-NEXT: LBB0_4: ## %for.end |
| ; ENABLE-NEXT: xorl %edx, %edx |
| ; ENABLE-NEXT: cmpb $0, _d |
| ; ENABLE-NEXT: movl $6, %ecx |
| ; ENABLE-NEXT: cmovnel %edx, %ecx |
| ; ENABLE-NEXT: movl L_e$non_lazy_ptr, %edx |
| ; ENABLE-NEXT: movb %cl, (%edx) |
| ; ENABLE-NEXT: leal 1(%ecx), %esi |
| ; ENABLE-NEXT: cltd |
| ; ENABLE-NEXT: idivl %esi |
| ; ENABLE-NEXT: movl L_c$non_lazy_ptr, %eax |
| ; ENABLE-NEXT: movl %edx, (%eax) |
| ; ENABLE-NEXT: movl %ecx, {{[0-9]+}}(%esp) |
| ; ENABLE-NEXT: movl $L_.str, (%esp) |
| ; ENABLE-NEXT: calll _varfunc |
| ; ENABLE-NEXT: xorl %eax, %eax |
| ; ENABLE-NEXT: addl $8, %esp |
| ; ENABLE-NEXT: popl %esi |
| ; ENABLE-NEXT: retl |
| ; |
| ; DISABLE-LABEL: eflagsLiveInPrologue: |
| ; DISABLE: ## %bb.0: ## %entry |
| ; DISABLE-NEXT: pushl %esi |
| ; DISABLE-NEXT: subl $8, %esp |
| ; DISABLE-NEXT: movl L_a$non_lazy_ptr, %eax |
| ; DISABLE-NEXT: cmpl $0, (%eax) |
| ; DISABLE-NEXT: je LBB0_2 |
| ; DISABLE-NEXT: ## %bb.1: ## %if.then |
| ; DISABLE-NEXT: movb $1, _d |
| ; DISABLE-NEXT: LBB0_2: ## %for.cond.preheader |
| ; DISABLE-NEXT: movl L_b$non_lazy_ptr, %eax |
| ; DISABLE-NEXT: movl (%eax), %eax |
| ; DISABLE-NEXT: testl %eax, %eax |
| ; DISABLE-NEXT: je LBB0_4 |
| ; DISABLE-NEXT: .p2align 4, 0x90 |
| ; DISABLE-NEXT: LBB0_3: ## %for.body |
| ; DISABLE-NEXT: ## =>This Inner Loop Header: Depth=1 |
| ; DISABLE-NEXT: jmp LBB0_3 |
| ; DISABLE-NEXT: LBB0_4: ## %for.end |
| ; DISABLE-NEXT: xorl %edx, %edx |
| ; DISABLE-NEXT: cmpb $0, _d |
| ; DISABLE-NEXT: movl $6, %ecx |
| ; DISABLE-NEXT: cmovnel %edx, %ecx |
| ; DISABLE-NEXT: movl L_e$non_lazy_ptr, %edx |
| ; DISABLE-NEXT: movb %cl, (%edx) |
| ; DISABLE-NEXT: leal 1(%ecx), %esi |
| ; DISABLE-NEXT: cltd |
| ; DISABLE-NEXT: idivl %esi |
| ; DISABLE-NEXT: movl L_c$non_lazy_ptr, %eax |
| ; DISABLE-NEXT: movl %edx, (%eax) |
| ; DISABLE-NEXT: movl %ecx, {{[0-9]+}}(%esp) |
| ; DISABLE-NEXT: movl $L_.str, (%esp) |
| ; DISABLE-NEXT: calll _varfunc |
| ; DISABLE-NEXT: xorl %eax, %eax |
| ; DISABLE-NEXT: addl $8, %esp |
| ; DISABLE-NEXT: popl %esi |
| ; DISABLE-NEXT: retl |
| entry: |
| %tmp = load i32, ptr @a, align 4 |
| %tobool = icmp eq i32 %tmp, 0 |
| br i1 %tobool, label %for.cond.preheader, label %if.then |
| |
| if.then: ; preds = %entry |
| store i1 true, ptr @d, align 1 |
| br label %for.cond.preheader |
| |
| for.cond.preheader: ; preds = %if.then, %entry |
| %tmp1 = load i32, ptr @b, align 4 |
| %tobool14 = icmp eq i32 %tmp1, 0 |
| br i1 %tobool14, label %for.end, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %for.cond.preheader |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %for.body.preheader |
| br label %for.body |
| |
| for.end: ; preds = %for.cond.preheader |
| %.b3 = load i1, ptr @d, align 1 |
| %tmp2 = select i1 %.b3, i8 0, i8 6 |
| store i8 %tmp2, ptr @e, align 1 |
| %tmp3 = load i8, ptr @e, align 1 |
| %conv = sext i8 %tmp3 to i32 |
| %add = add nsw i32 %conv, 1 |
| %rem = srem i32 %tmp1, %add |
| store i32 %rem, ptr @c, align 4 |
| %conv2 = select i1 %.b3, i32 0, i32 6 |
| %call = tail call i32 (ptr, ...) @varfunc(ptr nonnull @.str, i32 %conv2) #1 |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind |
| declare i32 @varfunc(ptr nocapture readonly, ...) #0 |
| |
| attributes #0 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+mmx,+sse" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind } |