File: backend-diagnostic.c

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (31 lines) | stat: -rw-r--r-- 1,651 bytes parent folder | download | duplicates (18)
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
31
// REQUIRES: x86-registered-target
// Play around with backend reporting:
// _REGULAR_: Regular behavior, no warning switch enabled.
// _PROMOTE_: Promote warning to error.
// _IGNORE_: Drop backend warning.
//
// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin 2> %t.err
// RUN: FileCheck < %t.err %s --check-prefix=REGULAR --check-prefix=ASM
// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin -Werror=frame-larger-than= 2> %t.err
// RUN: FileCheck < %t.err %s --check-prefix=PROMOTE --check-prefix=ASM
// RUN: not %clang_cc1 %s -mllvm -warn-stack-size=0 -no-integrated-as -S -o - -triple=i386-apple-darwin -Wno-frame-larger-than= 2> %t.err
// RUN: FileCheck < %t.err %s --check-prefix=IGNORE --check-prefix=ASM
//
// RUN: %clang_cc1 %s -S -o - -triple=i386-apple-darwin -verify -no-integrated-as

extern void doIt(char *);

// REGULAR: warning: stack frame size of {{[0-9]+}} bytes in function 'stackSizeWarning'
// PROMOTE: error: stack frame size of {{[0-9]+}} bytes in function 'stackSizeWarning'
// IGNORE-NOT: stack frame size of {{[0-9]+}} bytes in function 'stackSizeWarning'
void stackSizeWarning() {
  char buffer[80];
  doIt(buffer);
}

// ASM: inline assembly requires more registers than available
void inlineAsmError(int x0, int x1, int x2, int x3, int x4,
                    int x5, int x6, int x7, int x8, int x9) {
  __asm__("hello world": : "r" (x0),"r" (x1),"r" (x2),"r" (x3), // expected-error + {{inline assembly requires more registers than available}}
          "r" (x4),"r" (x5),"r" (x6),"r" (x7),"r" (x8),"r" (x9));
}