a5efa7386a
emit call results into potentially aliased slots. This allows us to properly mark indirect return slots as noalias, at the cost of requiring an extra memcpy when assigning an aggregate call result into a l-value. It also brings us into compliance with the x86-64 ABI. llvm-svn: 138599
43 lines
968 B
C
43 lines
968 B
C
// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - -fblocks | FileCheck %s
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void (^f)(void) = ^{};
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// rdar://6768379
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int f0(int (^a0)()) {
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return a0(1, 2, 3);
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}
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// Verify that attributes on blocks are set correctly.
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typedef struct s0 T;
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struct s0 {
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int a[64];
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};
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// CHECK: define internal void @__f2_block_invoke_0(%struct.s0* noalias sret {{%.*}}, i8* {{%.*}}, %struct.s0* byval align 4 {{.*}})
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struct s0 f2(struct s0 a0) {
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return ^(struct s0 a1){ return a1; }(a0);
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}
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// This should not crash: rdar://6808051
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void *P = ^{
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void *Q = __func__;
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};
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void (^test1)(void) = ^(void) {
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__block int i;
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^ { i = 1; }();
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};
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typedef double ftype(double);
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// It's not clear that we *should* support this syntax, but until that decision
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// is made, we should support it properly and not crash.
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ftype ^test2 = ^ftype {
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return 0;
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};
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// rdar://problem/8605032
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void f3_helper(void (^)(void));
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void f3() {
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_Bool b = 0;
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f3_helper(^{ if (b) {} });
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}
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