558277ae4d
2f497ec3a0056f15727ee6008211aeb2c4a8f455 updated the backend's rules for when lock-free atomics are available, but we never made a corresponding change to the frontend. Fix it to be consistent. This only affects targets older than v7.
22 lines
551 B
C++
22 lines
551 B
C++
// RUN: %clang_cc1 -triple armv6m-eabi -emit-llvm %s -o - | FileCheck -check-prefix=LIBCALL %s
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// RUN: %clang_cc1 -triple armv8-eabi -emit-llvm %s -o - | FileCheck -check-prefix=NATIVE %s
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// PR45476
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// This test used to get into an infinite loop,
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// which, in turn, caused clang to never finish execution.
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struct s3 {
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char a, b, c;
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};
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_Atomic struct s3 a;
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extern "C" void foo() {
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// LIBCALL-LABEL: @foo
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// LIBCALL: call void @__atomic_store
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// NATIVE-LABEL: @foo
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// NATIVE: store atomic i32 {{.*}} seq_cst, align 4
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a = s3{1, 2, 3};
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}
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