llvm-6502/test/Transforms/InstCombine/2012-03-10-InstCombine.ll
Benjamin Kramer 30a73022bb Don't try to filecheck bitcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152498 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-10 18:07:46 +00:00

36 lines
1.0 KiB
LLVM

; RUN: opt < %s -S -instcombine | FileCheck %s
; Derived from gcc.c-torture/execute/frame-address.c
; CHECK: @func
; CHECK: return:
; CHECK-NOT: ret i32 0
; CHECK: ret i32 %retval
define i32 @func(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp {
entry:
%d = alloca i8, align 1
store i8 0, i8* %d, align 1
%cmp = icmp ugt i8* %d, %c
br i1 %cmp, label %if.else, label %if.then
if.then: ; preds = %entry
%cmp2 = icmp ule i8* %d, %f
%not.cmp1 = icmp uge i8* %c, %f
%.cmp2 = and i1 %cmp2, %not.cmp1
%land.ext = zext i1 %.cmp2 to i32
br label %return
if.else: ; preds = %entry
%cmp5 = icmp uge i8* %d, %f
%not.cmp3 = icmp ule i8* %c, %f
%.cmp5 = and i1 %cmp5, %not.cmp3
%land.ext7 = zext i1 %.cmp5 to i32
br label %return
return: ; preds = %if.else, %if.then
%retval.0 = phi i32 [ %land.ext, %if.then ], [ %land.ext7, %if.else ]
ret i32 %retval.0
}