de98cf92e3
This fixes a miscompile when the parameter is actually underaligned. rdar://58316406 Differential revision: https://reviews.llvm.org/D74183
28 lines
953 B
C
28 lines
953 B
C
// This verifies that structs returned from functions by value are passed
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// correctly according to their attributes and the ABI.
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// SEE: PR3835
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// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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typedef int T0;
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typedef struct { int a[16]; } T1;
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T0 __attribute__((const)) f0(void);
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T0 __attribute__((pure)) f1(void);
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T1 __attribute__((const)) f2(void);
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T1 __attribute__((pure)) f3(void);
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void __attribute__((const)) f4(T1 a);
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void __attribute__((pure)) f5(T1 a);
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void *ps[] = { f0, f1, f2, f3, f4, f5 };
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// CHECK: declare i32 @f0() [[RN:#[0-9]+]]
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// CHECK: declare i32 @f1() [[RO:#[0-9]+]]
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// CHECK: declare void @f2({{.*}} sret align 4)
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// CHECK: declare void @f3({{.*}} sret align 4)
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// CHECK: declare void @f4({{.*}} byval({{.*}}) align 4)
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// CHECK: declare void @f5({{.*}} byval({{.*}}) align 4)
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// CHECK: attributes [[RN]] = { nounwind readnone{{.*}} }
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// CHECK: attributes [[RO]] = { nounwind readonly{{.*}} }
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