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.
20 lines
730 B
C
20 lines
730 B
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
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char buffer[32] = "This is a largely unused buffer";
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// __builtin___clear_cache always maps to @llvm.clear_cache, but what
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// each back-end produces is different, and this is tested in LLVM
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// CHECK-LABEL: @main(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 0, ptr [[RETVAL]], align 4
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// CHECK-NEXT: call void @llvm.clear_cache(ptr @buffer, ptr getelementptr inbounds nuw (i8, ptr @buffer, i64 32))
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// CHECK-NEXT: ret i32 0
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//
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int main(void) {
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__builtin___clear_cache(buffer, buffer+32);
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return 0;
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}
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