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llvm-mirror/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll
Johannes Doerfert 24773fbc70 [Attributor] Derive willreturn based on mustprogress 
Since D86233 we have `mustprogress` which, in combination with
`readonly`, implies `willreturn`. The idea is that every side-effect
has to be modeled as a "write". Consequently, `readonly` means there
is no side-effect, and `mustprogress` guarantees that we cannot "loop"
forever without side-effect.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D94125
2021-03-11 23:31:44 -06:00

270 lines
17 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
; 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]
;.
; CHECK: @[[MYSTR:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_MYSTR:%.*]] zeroinitializer
;.
define internal void @vfu1(%struct.MYstr* byval(%struct.MYstr) align 4 %u) nounwind {
; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@vfu1
; IS__CGSCC_OPM-SAME: (%struct.MYstr* noalias nocapture nofree noundef nonnull writeonly byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) [[U:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; IS__CGSCC_OPM-NEXT: store i32 99, i32* [[TMP0]], align 4
; IS__CGSCC_OPM-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 0
; IS__CGSCC_OPM-NEXT: store i8 97, i8* [[TMP1]], align 8
; IS__CGSCC_OPM-NEXT: br label [[RETURN:%.*]]
; IS__CGSCC_OPM: return:
; IS__CGSCC_OPM-NEXT: ret void
;
; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@vfu1
; IS__CGSCC_NPM-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[U_PRIV:%.*]] = alloca [[STRUCT_MYSTR:%.*]], align 8
; IS__CGSCC_NPM-NEXT: [[U_PRIV_CAST:%.*]] = bitcast %struct.MYstr* [[U_PRIV]] to i8*
; IS__CGSCC_NPM-NEXT: store i8 [[TMP0]], i8* [[U_PRIV_CAST]], align 8
; IS__CGSCC_NPM-NEXT: [[U_PRIV_0_1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__CGSCC_NPM-NEXT: store i32 [[TMP1]], i32* [[U_PRIV_0_1]], align 4
; IS__CGSCC_NPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__CGSCC_NPM-NEXT: store i32 99, i32* [[TMP2]], align 4
; IS__CGSCC_NPM-NEXT: [[TMP3:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 0
; IS__CGSCC_NPM-NEXT: store i8 97, i8* [[TMP3]], align 8
; IS__CGSCC_NPM-NEXT: br label [[RETURN:%.*]]
; IS__CGSCC_NPM: return:
; IS__CGSCC_NPM-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(%struct.MYstr) align 4 %u) nounwind readonly {
; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readonly willreturn
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@vfu2
; IS__TUNIT_OPM-SAME: (%struct.MYstr* noalias nocapture nofree noundef nonnull readonly byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) [[U:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__TUNIT_OPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]], align 4
; IS__TUNIT_OPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 0
; IS__TUNIT_OPM-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; IS__TUNIT_OPM-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; IS__TUNIT_OPM-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; IS__TUNIT_OPM-NEXT: ret i32 [[TMP5]]
;
; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readonly willreturn
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@vfu2
; IS__TUNIT_NPM-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR0:[0-9]+]] {
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[U_PRIV:%.*]] = alloca [[STRUCT_MYSTR:%.*]], align 8
; IS__TUNIT_NPM-NEXT: [[U_PRIV_CAST:%.*]] = bitcast %struct.MYstr* [[U_PRIV]] to i8*
; IS__TUNIT_NPM-NEXT: store i8 [[TMP0]], i8* [[U_PRIV_CAST]], align 1
; IS__TUNIT_NPM-NEXT: [[U_PRIV_0_1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__TUNIT_NPM-NEXT: store i32 [[TMP1]], i32* [[U_PRIV_0_1]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__TUNIT_NPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP4:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 0
; IS__TUNIT_NPM-NEXT: [[TMP5:%.*]] = load i8, i8* [[TMP4]], align 8
; IS__TUNIT_NPM-NEXT: [[TMP6:%.*]] = zext i8 [[TMP5]] to i32
; IS__TUNIT_NPM-NEXT: [[TMP7:%.*]] = add i32 [[TMP6]], [[TMP3]]
; IS__TUNIT_NPM-NEXT: ret i32 [[TMP7]]
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@vfu2
; IS__CGSCC____-SAME: () #[[ATTR1:[0-9]+]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__CGSCC____-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]], align 4
; IS__CGSCC____-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* @mystr, i32 0, i32 0
; IS__CGSCC____-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; IS__CGSCC____-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; IS__CGSCC____-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; IS__CGSCC____-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 {
; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind willreturn
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@unions
; IS__TUNIT_OPM-SAME: () #[[ATTR1:[0-9]+]] {
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) @mystr) #[[ATTR0]]
; IS__TUNIT_OPM-NEXT: ret i32 [[RESULT]]
;
; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@unions
; IS__TUNIT_NPM-SAME: () #[[ATTR1:[0-9]+]] {
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[MYSTR_CAST:%.*]] = bitcast %struct.MYstr* @mystr to i8*
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST]], align 8
; IS__TUNIT_NPM-NEXT: [[MYSTR_0_1:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__TUNIT_NPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[MYSTR_0_1]], align 8
; IS__TUNIT_NPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2(i8 [[TMP0]], i32 [[TMP1]]) #[[ATTR0]]
; IS__TUNIT_NPM-NEXT: ret i32 [[RESULT]]
;
; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
; IS__CGSCC____-LABEL: define {{[^@]+}}@unions
; IS__CGSCC____-SAME: () #[[ATTR1]] {
; IS__CGSCC____-NEXT: entry:
; IS__CGSCC____-NEXT: [[RESULT:%.*]] = call i32 @vfu2() #[[ATTR2:[0-9]+]]
; IS__CGSCC____-NEXT: ret i32 [[RESULT]]
;
entry:
call void @vfu1(%struct.MYstr* byval(%struct.MYstr) align 4 @mystr) nounwind
%result = call i32 @vfu2(%struct.MYstr* byval(%struct.MYstr) align 4 @mystr) nounwind
ret i32 %result
}
define internal i32 @vfu2_v2(%struct.MYstr* byval(%struct.MYstr) align 4 %u) nounwind readonly {
; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@vfu2_v2
; IS__TUNIT_OPM-SAME: (%struct.MYstr* noalias nocapture nofree noundef nonnull byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) [[U:%.*]]) #[[ATTR2:[0-9]+]] {
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[Z:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; IS__TUNIT_OPM-NEXT: store i32 99, i32* [[Z]], align 4
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; IS__TUNIT_OPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]], align 4
; IS__TUNIT_OPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 0
; IS__TUNIT_OPM-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; IS__TUNIT_OPM-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; IS__TUNIT_OPM-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; IS__TUNIT_OPM-NEXT: ret i32 [[TMP5]]
;
; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@vfu2_v2
; IS__TUNIT_NPM-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR2:[0-9]+]] {
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[U_PRIV:%.*]] = alloca [[STRUCT_MYSTR:%.*]], align 8
; IS__TUNIT_NPM-NEXT: [[U_PRIV_CAST:%.*]] = bitcast %struct.MYstr* [[U_PRIV]] to i8*
; IS__TUNIT_NPM-NEXT: store i8 [[TMP0]], i8* [[U_PRIV_CAST]], align 1
; IS__TUNIT_NPM-NEXT: [[U_PRIV_0_1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__TUNIT_NPM-NEXT: store i32 [[TMP1]], i32* [[U_PRIV_0_1]], align 4
; IS__TUNIT_NPM-NEXT: [[Z:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__TUNIT_NPM-NEXT: store i32 99, i32* [[Z]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__TUNIT_NPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP4:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 0
; IS__TUNIT_NPM-NEXT: [[TMP5:%.*]] = load i8, i8* [[TMP4]], align 8
; IS__TUNIT_NPM-NEXT: [[TMP6:%.*]] = zext i8 [[TMP5]] to i32
; IS__TUNIT_NPM-NEXT: [[TMP7:%.*]] = add i32 [[TMP6]], [[TMP3]]
; IS__TUNIT_NPM-NEXT: ret i32 [[TMP7]]
;
; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@vfu2_v2
; IS__CGSCC_OPM-SAME: (%struct.MYstr* noalias nocapture nofree noundef nonnull byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) [[U:%.*]]) #[[ATTR0]] {
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[Z:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; IS__CGSCC_OPM-NEXT: store i32 99, i32* [[Z]], align 4
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 1
; IS__CGSCC_OPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[TMP0]], align 4
; IS__CGSCC_OPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U]], i32 0, i32 0
; IS__CGSCC_OPM-NEXT: [[TMP3:%.*]] = load i8, i8* [[TMP2]], align 8
; IS__CGSCC_OPM-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i32
; IS__CGSCC_OPM-NEXT: [[TMP5:%.*]] = add i32 [[TMP4]], [[TMP1]]
; IS__CGSCC_OPM-NEXT: ret i32 [[TMP5]]
;
; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@vfu2_v2
; IS__CGSCC_NPM-SAME: (i8 [[TMP0:%.*]], i32 [[TMP1:%.*]]) #[[ATTR0]] {
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[U_PRIV:%.*]] = alloca [[STRUCT_MYSTR:%.*]], align 8
; IS__CGSCC_NPM-NEXT: [[U_PRIV_CAST:%.*]] = bitcast %struct.MYstr* [[U_PRIV]] to i8*
; IS__CGSCC_NPM-NEXT: store i8 [[TMP0]], i8* [[U_PRIV_CAST]], align 8
; IS__CGSCC_NPM-NEXT: [[U_PRIV_0_1:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__CGSCC_NPM-NEXT: store i32 [[TMP1]], i32* [[U_PRIV_0_1]], align 4
; IS__CGSCC_NPM-NEXT: [[Z:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__CGSCC_NPM-NEXT: store i32 99, i32* [[Z]], align 4
; IS__CGSCC_NPM-NEXT: [[TMP2:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 1
; IS__CGSCC_NPM-NEXT: [[TMP3:%.*]] = load i32, i32* [[TMP2]], align 4
; IS__CGSCC_NPM-NEXT: [[TMP4:%.*]] = getelementptr [[STRUCT_MYSTR]], %struct.MYstr* [[U_PRIV]], i32 0, i32 0
; IS__CGSCC_NPM-NEXT: [[TMP5:%.*]] = load i8, i8* [[TMP4]], align 8
; IS__CGSCC_NPM-NEXT: [[TMP6:%.*]] = zext i8 [[TMP5]] to i32
; IS__CGSCC_NPM-NEXT: [[TMP7:%.*]] = add i32 [[TMP6]], [[TMP3]]
; IS__CGSCC_NPM-NEXT: ret i32 [[TMP7]]
;
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 {
; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@unions_v2
; IS__TUNIT_OPM-SAME: () #[[ATTR2]] {
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) @mystr) #[[ATTR2]]
; IS__TUNIT_OPM-NEXT: ret i32 [[RESULT]]
;
; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@unions_v2
; IS__TUNIT_NPM-SAME: () #[[ATTR2]] {
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[MYSTR_CAST:%.*]] = bitcast %struct.MYstr* @mystr to i8*
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST]], align 8
; IS__TUNIT_NPM-NEXT: [[MYSTR_0_1:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__TUNIT_NPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[MYSTR_0_1]], align 8
; IS__TUNIT_NPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2_v2(i8 [[TMP0]], i32 [[TMP1]]) #[[ATTR2]]
; IS__TUNIT_NPM-NEXT: ret i32 [[RESULT]]
;
; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@unions_v2
; IS__CGSCC_OPM-SAME: () #[[ATTR0]] {
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* noalias nocapture nofree noundef nonnull readnone byval([[STRUCT_MYSTR:%.*]]) align 8 dereferenceable(8) @mystr) #[[ATTR3:[0-9]+]]
; IS__CGSCC_OPM-NEXT: ret i32 [[RESULT]]
;
; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@unions_v2
; IS__CGSCC_NPM-SAME: () #[[ATTR1]] {
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[MYSTR_CAST1:%.*]] = bitcast %struct.MYstr* @mystr to i8*
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST1]], align 8
; IS__CGSCC_NPM-NEXT: [[MYSTR_0_12:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
; IS__CGSCC_NPM-NEXT: [[TMP1:%.*]] = load i32, i32* [[MYSTR_0_12]], align 8
; IS__CGSCC_NPM-NEXT: [[RESULT:%.*]] = call i32 @vfu2_v2(i8 [[TMP0]], i32 [[TMP1]]) #[[ATTR3:[0-9]+]]
; IS__CGSCC_NPM-NEXT: ret i32 [[RESULT]]
;
entry:
call void @vfu1(%struct.MYstr* byval(%struct.MYstr) align 4 @mystr) nounwind
%result = call i32 @vfu2_v2(%struct.MYstr* byval(%struct.MYstr) align 4 @mystr) nounwind
ret i32 %result
}
;.
; IS__TUNIT____: attributes #[[ATTR0:[0-9]+]] = { nofree nosync nounwind readonly willreturn }
; IS__TUNIT____: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
; IS__TUNIT____: attributes #[[ATTR2:[0-9]+]] = { nofree nosync nounwind readnone willreturn }
;.
; IS__CGSCC____: attributes #[[ATTR0:[0-9]+]] = { nofree norecurse nosync nounwind readnone willreturn }
; IS__CGSCC____: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind readonly willreturn }
; IS__CGSCC____: attributes #[[ATTR2]] = { nounwind readonly willreturn }
; IS__CGSCC____: attributes #[[ATTR3:[0-9]+]] = { nounwind readnone willreturn }
;.
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