forked from OSchip/llvm-project
parent
1260f59f5e
commit
28f8189866
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@ -2,23 +2,23 @@
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// Exercise various use cases for local asm "register variables".
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int foo() {
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// CHECK: %a = alloca i32
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// CHECK: [[A:%[a-zA-Z0-9]+]] = alloca i32
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register int a asm("rsi")=5;
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// CHECK: store i32 5, i32* %a
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// CHECK: store i32 5, i32* [[A]]
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asm volatile("; %0 This asm defines rsi" : "=r"(a));
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// CHECK: %0 = call i32 asm sideeffect "; $0 This asm defines rsi", "={rsi},~{dirflag},~{fpsr},~{flags}"()
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// CHECK: store i32 %0, i32* %a
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// CHECK: [[Z:%[a-zA-Z0-9]+]] = call i32 asm sideeffect "; $0 This asm defines rsi", "={rsi},~{dirflag},~{fpsr},~{flags}"()
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// CHECK: store i32 [[Z]], i32* [[A]]
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a = 42;
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// CHECK: store i32 42, i32* %a
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// CHECK: store i32 42, i32* [[A]]
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asm volatile("; %0 This asm uses rsi" : : "r"(a));
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// CHECK: %tmp = load i32* %a
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// CHECK: call void asm sideeffect "; $0 This asm uses rsi", "{rsi},~{dirflag},~{fpsr},~{flags}"(i32 %tmp)
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// CHECK: [[TMP:%[a-zA-Z0-9]+]] = load i32* [[A]]
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// CHECK: call void asm sideeffect "; $0 This asm uses rsi", "{rsi},~{dirflag},~{fpsr},~{flags}"(i32 [[TMP]])
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return a;
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// CHECK: %tmp1 = load i32* %a
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// CHECK: ret i32 %tmp1
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// CHECK: [[TMP1:%[a-zA-Z0-9]+]] = load i32* [[A]]
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// CHECK: ret i32 [[TMP1]]
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}
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