; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 ; RUN: llc %s -o - -enable-shrink-wrap=true | FileCheck --check-prefix=SHRINK-WRAP %s ; RUN: llc %s -o - -enable-shrink-wrap=false | FileCheck --check-prefix=NO-SHRINK-WRAP %s target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" target triple = "i686-pc-windows-msvc18.0.0" %struct.S = type { i32 } ; Check that we do not use a basic block that has EFLAGS as live-in ; if we need to realign the stack. define x86_thiscallcc void @stackRealignment(ptr %this) { ; SHRINK-WRAP-LABEL: stackRealignment: ; SHRINK-WRAP: # %bb.0: # %entry ; SHRINK-WRAP-NEXT: movl (%ecx), %eax ; SHRINK-WRAP-NEXT: cmpl $33, %eax ; SHRINK-WRAP-NEXT: movl $42, %edx ; SHRINK-WRAP-NEXT: jge LBB0_2 ; SHRINK-WRAP-NEXT: # %bb.1: # %entry ; SHRINK-WRAP-NEXT: movl $128, %edx ; SHRINK-WRAP-NEXT: LBB0_2: # %entry ; SHRINK-WRAP-NEXT: pushl %ebp ; SHRINK-WRAP-NEXT: movl %esp, %ebp ; SHRINK-WRAP-NEXT: andl $-8, %esp ; SHRINK-WRAP-NEXT: subl $16, %esp ; SHRINK-WRAP-NEXT: movl %edx, {{[0-9]+}}(%esp) ; SHRINK-WRAP-NEXT: cmpl $32, %eax ; SHRINK-WRAP-NEXT: jl LBB0_4 ; SHRINK-WRAP-NEXT: # %bb.3: # %if.end ; SHRINK-WRAP-NEXT: leal {{[0-9]+}}(%esp), %eax ; SHRINK-WRAP-NEXT: leal {{[0-9]+}}(%esp), %edx ; SHRINK-WRAP-NEXT: pushl %eax ; SHRINK-WRAP-NEXT: pushl %edx ; SHRINK-WRAP-NEXT: calll _bar ; SHRINK-WRAP-NEXT: LBB0_4: # %cleanup ; SHRINK-WRAP-NEXT: movl %ebp, %esp ; SHRINK-WRAP-NEXT: popl %ebp ; SHRINK-WRAP-NEXT: retl ; ; NO-SHRINK-WRAP-LABEL: stackRealignment: ; NO-SHRINK-WRAP: # %bb.0: # %entry ; NO-SHRINK-WRAP-NEXT: pushl %ebp ; NO-SHRINK-WRAP-NEXT: movl %esp, %ebp ; NO-SHRINK-WRAP-NEXT: andl $-8, %esp ; NO-SHRINK-WRAP-NEXT: subl $16, %esp ; NO-SHRINK-WRAP-NEXT: movl (%ecx), %eax ; NO-SHRINK-WRAP-NEXT: cmpl $33, %eax ; NO-SHRINK-WRAP-NEXT: movl $42, %edx ; NO-SHRINK-WRAP-NEXT: jge LBB0_2 ; NO-SHRINK-WRAP-NEXT: # %bb.1: # %entry ; NO-SHRINK-WRAP-NEXT: movl $128, %edx ; NO-SHRINK-WRAP-NEXT: LBB0_2: # %entry ; NO-SHRINK-WRAP-NEXT: movl %edx, {{[0-9]+}}(%esp) ; NO-SHRINK-WRAP-NEXT: cmpl $32, %eax ; NO-SHRINK-WRAP-NEXT: jl LBB0_4 ; NO-SHRINK-WRAP-NEXT: # %bb.3: # %if.end ; NO-SHRINK-WRAP-NEXT: leal {{[0-9]+}}(%esp), %eax ; NO-SHRINK-WRAP-NEXT: leal {{[0-9]+}}(%esp), %edx ; NO-SHRINK-WRAP-NEXT: pushl %eax ; NO-SHRINK-WRAP-NEXT: pushl %edx ; NO-SHRINK-WRAP-NEXT: calll _bar ; NO-SHRINK-WRAP-NEXT: LBB0_4: # %cleanup ; NO-SHRINK-WRAP-NEXT: movl %ebp, %esp ; NO-SHRINK-WRAP-NEXT: popl %ebp ; NO-SHRINK-WRAP-NEXT: retl entry: %data = alloca [1 x i32], align 4 %d = alloca double, align 8 %tmp1 = load i32, ptr %this, align 4 %cmp = icmp sgt i32 %tmp1, 32 %cond = select i1 %cmp, i32 42, i32 128 store i32 %cond, ptr %data, align 4 %cmp3 = icmp slt i32 %tmp1, 32 br i1 %cmp3, label %cleanup, label %if.end if.end: ; preds = %entry call x86_thiscallcc void @bar(ptr nonnull %this, ptr %data, ptr nonnull %d) br label %cleanup cleanup: ; preds = %if.end, %entry ret void } ; Function Attrs: optsize declare x86_thiscallcc void @bar(ptr, ptr, ptr)