| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -instcombine | FileCheck %s |
| |
| ; Derived from gcc.c-torture/execute/frame-address.c |
| |
| define i32 @func(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp { |
| ; CHECK-LABEL: @func( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[D:%.*]] = alloca i8, align 1 |
| ; CHECK-NEXT: store i8 0, i8* [[D]], align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8* [[D]], [[C:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i8* [[D]], [[F:%.*]] |
| ; CHECK-NEXT: [[NOT_CMP1:%.*]] = icmp uge i8* [[C]], [[F]] |
| ; CHECK-NEXT: [[DOTCMP2:%.*]] = and i1 [[CMP2]], [[NOT_CMP1]] |
| ; CHECK-NEXT: br label [[RETURN:%.*]] |
| ; CHECK: if.else: |
| ; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i8* [[D]], [[F]] |
| ; CHECK-NEXT: [[NOT_CMP3:%.*]] = icmp ule i8* [[C]], [[F]] |
| ; CHECK-NEXT: [[DOTCMP5:%.*]] = and i1 [[CMP5]], [[NOT_CMP3]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL_0_IN:%.*]] = phi i1 [ [[DOTCMP2]], [[IF_THEN]] ], [ [[DOTCMP5]], [[IF_ELSE]] ] |
| ; CHECK-NEXT: [[RETVAL_0:%.*]] = zext i1 [[RETVAL_0_IN]] to i32 |
| ; CHECK-NEXT: ret i32 [[RETVAL_0]] |
| ; |
| 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 |
| } |
| |
| define i32 @func_logical(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp { |
| ; CHECK-LABEL: @func_logical( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[D:%.*]] = alloca i8, align 1 |
| ; CHECK-NEXT: store i8 0, i8* [[D]], align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8* [[D]], [[C:%.*]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i8* [[D]], [[F:%.*]] |
| ; CHECK-NEXT: [[NOT_CMP1:%.*]] = icmp uge i8* [[C]], [[F]] |
| ; CHECK-NEXT: [[DOTCMP2:%.*]] = and i1 [[CMP2]], [[NOT_CMP1]] |
| ; CHECK-NEXT: br label [[RETURN:%.*]] |
| ; CHECK: if.else: |
| ; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i8* [[D]], [[F]] |
| ; CHECK-NEXT: [[NOT_CMP3:%.*]] = icmp ule i8* [[C]], [[F]] |
| ; CHECK-NEXT: [[DOTCMP5:%.*]] = and i1 [[CMP5]], [[NOT_CMP3]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL_0_IN:%.*]] = phi i1 [ [[DOTCMP2]], [[IF_THEN]] ], [ [[DOTCMP5]], [[IF_ELSE]] ] |
| ; CHECK-NEXT: [[RETVAL_0:%.*]] = zext i1 [[RETVAL_0_IN]] to i32 |
| ; CHECK-NEXT: ret i32 [[RETVAL_0]] |
| ; |
| 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 = select i1 %cmp2, i1 %not.cmp1, i1 false |
| %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 = select i1 %cmp5, i1 %not.cmp3, i1 false |
| %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 |
| } |
| |
