File: frame-pointer-elim.c

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-9
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,144 kB
  • ctags: 428,836
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (44 lines) | stat: -rw-r--r-- 1,812 bytes parent folder | download | duplicates (2)
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
32
33
34
35
36
37
38
39
40
41
42
43
44
// For these next two tests when optimized we should omit the leaf frame
// pointer, for unoptimized we should have a leaf frame pointer.
// RUN: %clang -### -target i386-pc-linux-gnu -S -O1 %s 2>&1 | \
// RUN:   FileCheck --check-prefix=LINUX-OPT %s
// LINUX-OPT: "-momit-leaf-frame-pointer"

// RUN: %clang -### -target i386-pc-linux-gnu -S %s 2>&1 | \
// RUN:   FileCheck --check-prefix=LINUX %s
// LINUX-NOT: "-momit-leaf-frame-pointer"

// CloudABI follows the same rules as Linux.
// RUN: %clang -### -target x86_64-unknown-cloudabi -S -O1 %s 2>&1 | \
// RUN:   FileCheck --check-prefix=CLOUDABI-OPT %s
// CLOUDABI-OPT: "-momit-leaf-frame-pointer"

// RUN: %clang -### -target x86_64-unknown-cloudabi -S %s 2>&1 | \
// RUN:   FileCheck --check-prefix=CLOUDABI %s
// CLOUDABI-NOT: "-momit-leaf-frame-pointer"

// Darwin disables omitting the leaf frame pointer even under optimization
// unless the command lines are given.
// RUN: %clang -### -target i386-apple-darwin -S %s 2>&1 | \
// RUN:   FileCheck --check-prefix=DARWIN %s
// DARWIN: "-mdisable-fp-elim"

// RUN: %clang -### -target i386-apple-darwin -S -O1 %s 2>&1 | \
// RUN:   FileCheck --check-prefix=DARWIN-OPT %s
// DARWIN-OPT-NOT: "-momit-leaf-frame-pointer"

// RUN: %clang -### -target i386-darwin -S -fomit-frame-pointer %s 2>&1 | \
// RUN:   FileCheck --check-prefix=OMIT_ALL %s
// OMIT_ALL-NOT: "-mdisable-fp-elim"

// RUN: %clang -### -target i386-darwin -S -momit-leaf-frame-pointer %s 2>&1 | \
// RUN:   FileCheck --check-prefix=OMIT_LEAF %s
// OMIT_LEAF: "-momit-leaf-frame-pointer"

// On the PS4, we default to omitting the frame pointer on leaf functions
// (OMIT_LEAF check line is above)
// RUN: %clang -### -target x86_64-scei-ps4 -S %s 2>&1 | \
// RUN:   FileCheck --check-prefix=OMIT_LEAF %s

void f0() {}
void f1() { f0(); }