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94473f4db6
Generate nuw GEPs for struct member accesses, as inbounds + non-negative implies nuw. Regression tests are updated using update scripts where possible, and by find + replace where not.
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
// RUN: %clang_cc1 -triple i386-unknown-unknown -fblocks -emit-llvm %s -o - | FileCheck %s
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// CHECK: %[[STRUCT_A:.*]] = type { i8 }
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struct A
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{
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~A();
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};
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int foo(A);
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void bar(A &a)
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{
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// CHECK: call void asm
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asm("" : : "r"(foo(a)) );
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// CHECK: call void @_ZN1AD1Ev
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}
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namespace TestTemplate {
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// Check that the temporary is destructed after the first asm statement.
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// CHECK: define {{.*}}void @_ZN12TestTemplate4foo0IvEEvR1A(
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_A]],
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// CHECK: %[[CALL:.*]] = call noundef i32 @_Z3foo1A({{.*}}%[[AGG_TMP]])
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// CHECK: call void asm sideeffect "", "r,~{dirflag},~{fpsr},~{flags}"(i32 %[[CALL]])
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// CHECK: call void @_ZN1AD1Ev({{.*}}%[[AGG_TMP]])
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// CHECK: call void asm sideeffect "",
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template <class T>
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void foo0(A &a) {
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asm("" : : "r"(foo(a)) );
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asm("");
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}
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void test0(A &a) { foo0<void>(a); }
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// Check that the block capture is destructed at the end of the enclosing scope.
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// CHECK: define {{.*}}void @_ZN12TestTemplate4foo1IvEEv1A(
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// CHECK: %[[BLOCK:.*]] = alloca <{ ptr, i32, i32, ptr, ptr, %[[STRUCT_A]] }>, align 4
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// CHECK: %[[BLOCK_CAPTURED:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, %[[STRUCT_A]] }>, ptr %[[BLOCK]], i32 0, i32 5
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// CHECK: call void asm sideeffect "", "r,~{dirflag},~{fpsr},~{flags}"(i32 %{{.*}})
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// CHECK: call void asm sideeffect "", "~{dirflag},~{fpsr},~{flags}"()
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// CHECK: call void @_ZN1AD1Ev({{.*}} %[[BLOCK_CAPTURED]])
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template <class T>
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void foo1(A a) {
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asm("" : : "r"(^{ (void)a; return 0; }()));
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asm("");
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}
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void test1(A &a) { foo1<void>(a); }
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} // namespace TestTemplate
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