File: 2006-05-19-SingleEltReturn.c

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (30 lines) | stat: -rw-r--r-- 660 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
// Test returning a single element aggregate value containing a double.
// RUN: %clang_cc1 -triple i686-linux %s -emit-llvm -o - | FileCheck %s --check-prefix=X86_32
// RUN: %clang_cc1 %s -emit-llvm -o -

struct X {
  double D;
};

struct Y {
  struct X x;
};

struct Y bar(void);

void foo(struct Y *P) {
  *P = bar();
}

struct Y bar(void) {
  struct Y a;
  a.x.D = 0;
  return a;
}


// X86_32: define{{.*}} void @foo(ptr noundef %P)
// X86_32:   call void @bar(ptr dead_on_unwind writable sret(%struct.Y) align 4 %{{[^),]*}})

// X86_32: define{{.*}} void @bar(ptr dead_on_unwind noalias writable sret(%struct.Y) align 4 %{{[^,)]*}})
// X86_32:   ret void