2c03e53f4e
This adds builtin_cpu_init which will emit a call to cpu_indicator_init in libgcc or compiler-rt. This is needed to support builtin_cpu_supports/builtin_cpu_is in an ifunc resolver. Differential Revision: https://reviews.llvm.org/D36336 llvm-svn: 311874
21 lines
643 B
C
21 lines
643 B
C
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm < %s| FileCheck %s
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// Test that we have the structure definition, the gep offsets, the name of the
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// global, the bit grab, and the icmp correct.
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extern void a(const char *);
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int main() {
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__builtin_cpu_init();
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// CHECK: call void @__cpu_indicator_init
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if (__builtin_cpu_supports("sse4.2"))
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a("sse4.2");
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// CHECK: [[LOAD:%[^ ]+]] = load i32, i32* getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, { i32, i32, i32, [1 x i32] }* @__cpu_model, i32 0, i32 3, i32 0)
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// CHECK: [[AND:%[^ ]+]] = and i32 [[LOAD]], 256
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// CHECK: = icmp ne i32 [[AND]], 0
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return 0;
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}
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