b3d99ac2cd
Use the DataLayout-aware TargetFolder instead of ConstantFolder in Clang's CGBuilder. The primary impact of this change is that GEP constant expressions are now emitted in canonical `getelementptr i8` form. This is in preparation for the migration to ptradd, which requires this form. Part of the test updates were performed by Claude Code and reviewed by me.
21 lines
649 B
C++
21 lines
649 B
C++
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 3
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s
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struct S;
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extern S a[10];
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S(*b)[10] = &a;
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struct S {
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int x;
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};
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// The address calculation should be based on the size of the struct S
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// declaration, not a dummy type like i8.
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// CHECK-LABEL: define dso_local noundef i32 @_Z1fv(
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// CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr getelementptr inbounds nuw (i8, ptr @a, i64 12), align 4
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// CHECK-NEXT: ret i32 [[TMP0]]
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//
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int f() { return a[3].x; }
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