2009-09-24-byval-ptr.ll
4.71 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt -S -passes=attributor -aa-pipeline='basic-aa' -attributor-disable=false -attributor-max-iterations-verify -attributor-max-iterations=2 < %s | FileCheck %s
; Don't constant-propagate byval pointers, since they are not pointers!
; PR5038
%struct.MYstr = type { i8, i32 }
@mystr = internal global %struct.MYstr zeroinitializer ; <%struct.MYstr*> [#uses=3]
define internal void @vfu1(%struct.MYstr* byval align 4 %u) nounwind {
; CHECK-LABEL: define {{[^@]+}}@vfu1
; CHECK-SAME: (%struct.MYstr* nocapture nofree nonnull writeonly byval align 8 dereferenceable(8) [[U:%.*]])
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* [[U]], i32 0, i32 1
; CHECK-NEXT: store i32 99, i32* [[TMP0]], align 4
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 0
; CHECK-NEXT: store i8 97, i8* [[TMP1]], align 8
; CHECK-NEXT: br label [[RETURN:%.*]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
%0 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1 ; <i32*> [#uses=1]
store i32 99, i32* %0, align 4
%1 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 0 ; <i8*> [#uses=1]
store i8 97, i8* %1, align 4
br label %return
return: ; preds = %entry
ret void
}
define internal i32 @vfu2(%struct.MYstr* byval align 4 %u) nounwind readonly {
; CHECK-LABEL: define {{[^@]+}}@vfu2
; CHECK-SAME: (%struct.MYstr* nocapture nofree nonnull readonly byval align 8 dereferenceable(8) [[U:%.*]])
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 0
; CHECK-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; CHECK-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; CHECK-NEXT: ret i32 [[TMP5]]
;
entry:
%0 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1 ; <i32*> [#uses=1]
%1 = load i32, i32* %0
%2 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 0 ; <i8*> [#uses=1]
%3 = load i8, i8* %2
%4 = zext i8 %3 to i32
%5 = add i32 %4, %1
ret i32 %5
}
define i32 @unions() nounwind {
; CHECK-LABEL: define {{[^@]+}}@unions()
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @vfu1(%struct.MYstr* nofree nonnull readonly byval align 8 dereferenceable(8) @mystr)
; CHECK-NEXT: [[RESULT:%.*]] = call i32 @vfu2(%struct.MYstr* nofree nonnull readonly byval align 8 dereferenceable(8) @mystr)
; CHECK-NEXT: ret i32 [[RESULT]]
;
entry:
call void @vfu1(%struct.MYstr* byval align 4 @mystr) nounwind
%result = call i32 @vfu2(%struct.MYstr* byval align 4 @mystr) nounwind
ret i32 %result
}
define internal i32 @vfu2_v2(%struct.MYstr* byval align 4 %u) nounwind readonly {
; CHECK-LABEL: define {{[^@]+}}@vfu2_v2
; CHECK-SAME: (%struct.MYstr* nocapture nofree nonnull byval align 8 dereferenceable(8) [[U:%.*]])
; CHECK-NEXT: entry:
; CHECK-NEXT: [[Z:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* [[U]], i32 0, i32 1
; CHECK-NEXT: store i32 99, i32* [[Z]], align 4
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 0
; CHECK-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; CHECK-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; CHECK-NEXT: ret i32 [[TMP5]]
;
entry:
%z = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1
store i32 99, i32* %z, align 4
%0 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 1 ; <i32*> [#uses=1]
%1 = load i32, i32* %0
%2 = getelementptr %struct.MYstr, %struct.MYstr* %u, i32 0, i32 0 ; <i8*> [#uses=1]
%3 = load i8, i8* %2
%4 = zext i8 %3 to i32
%5 = add i32 %4, %1
ret i32 %5
}
define i32 @unions_v2() nounwind {
; CHECK-LABEL: define {{[^@]+}}@unions_v2()
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @vfu1(%struct.MYstr* nofree nonnull readonly byval align 8 dereferenceable(8) @mystr)
; CHECK-NEXT: [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* nofree nonnull readonly byval align 8 dereferenceable(8) @mystr)
; CHECK-NEXT: ret i32 [[RESULT]]
;
entry:
call void @vfu1(%struct.MYstr* byval align 4 @mystr) nounwind
%result = call i32 @vfu2_v2(%struct.MYstr* byval align 4 @mystr) nounwind
ret i32 %result
}