0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
19 lines
495 B
C
19 lines
495 B
C
// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
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void foo(int x)
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{
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_Atomic(int) i = 0;
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_Atomic(short) j = 0;
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// Check that multiply / divides on atomics produce a cmpxchg loop
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i *= 2;
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// CHECK: mul nsw i32
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// CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4,)}}
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i /= 2;
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// CHECK: sdiv i32
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// CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4, )}}
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j /= x;
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// CHECK: sdiv i32
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// CHECK: {{(cmpxchg i16*|i1 @__atomic_compare_exchange\(i32 2, )}}
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}
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