clang/test/Driver/frame-pointer-elim.c

   1 // KEEP-ALL-NOT:  warning:
   2 // KEEP-ALL:      "-mframe-pointer=all"
   3 // KEEP-NON-LEAF-NOT: warning:
   4 // KEEP-NON-LEAF: "-mframe-pointer=non-leaf"
   5 // KEEP-NONE-NOT: warning:
   6 // KEEP-NONE:     "-mframe-pointer=none"
   7
   8 // On Linux x86, omit frame pointer when optimization is enabled.
   9 // RUN: %clang -### -target i386-linux -S -fomit-frame-pointer %s 2>&1 | \
  10 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  11 // RUN: %clang -### -target i386-linux -S -O1 %s 2>&1 | \
  12 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  13
  14 // -fno-omit-frame-pointer or -pg disables frame pointer omission.
  15 // RUN: %clang -### -target i386-linux -S %s 2>&1 | \
  16 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  17 // RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer %s 2>&1 | \
  18 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  19 // RUN: %clang -### -target i386-linux -S -O1 -pg %s 2>&1 | \
  20 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  21
  22 // -momit-leaf-frame-pointer omits leaf frame pointer.
  23 // -fno-omit-frame-pointer loses out to -momit-leaf-frame-pointer.
  24 // RUN: %clang -### -target i386 -S -momit-leaf-frame-pointer %s 2>&1 | \
  25 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  26 // RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer -momit-leaf-frame-pointer %s 2>&1 | \
  27 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  28 // RUN: %clang -### -target i386-linux -S -O1 -momit-leaf-frame-pointer %s 2>&1 | \
  29 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  30
  31 // fno-omit-frame-pointer -momit-leaf-frame-pointer can be overwritten by
  32 // fomit-frame-pointer later on the command without warning
  33 // RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer -momit-leaf-frame-pointer -fomit-frame-pointer %s 2>&1 | \
  34 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  35
  36 // RUN: %clang -### -target i386-linux -S -O1 -fno-omit-frame-pointer -momit-leaf-frame-pointer %s 2>&1 | \
  37 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  38 // Explicit or default -fomit-frame-pointer wins over -mno-omit-leaf-frame-pointer.
  39 // RUN: %clang -### -target i386 -S %s -fomit-frame-pointer -mno-omit-leaf-frame-pointer 2>&1 | \
  40 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  41 // RUN: %clang -### -target i386-linux -S %s -O1 -mno-omit-leaf-frame-pointer 2>&1 | \
  42 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  43
  44 // -pg -fomit-frame-pointer => error.
  45 // RUN: %clang -### -S -fomit-frame-pointer -pg %s 2>&1 | FileCheck -check-prefix=CHECK-NO-MIX-OMIT-FP-PG %s
  46 // RUN: %clang -### -S -fomit-frame-pointer -fno-omit-frame-pointer -pg %s 2>&1 | FileCheck -check-prefix=CHECK-MIX-NO-OMIT-FP-PG %s
  47 // CHECK-NO-MIX-OMIT-FP-PG: '-fomit-frame-pointer' not allowed with '-pg'
  48 // CHECK-MIX-NO-OMIT-FP-PG-NOT: '-fomit-frame-pointer' not allowed with '-pg'
  49
  50 // CloudABI follows the same rules as Linux.
  51 // RUN: %clang -### -target x86_64-unknown-cloudabi -S -O1 %s 2>&1 | \
  52 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  53
  54 // RUN: %clang -### -target x86_64-unknown-cloudabi -S %s 2>&1 | \
  55 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  56
  57 // NetBSD follows the same rules as Linux.
  58 // RUN: %clang -### -target x86_64-unknown-netbsd -S -O1 %s 2>&1 | \
  59 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  60
  61 // RUN: %clang -### -target x86_64-unknown-netbsd -S %s 2>&1 | \
  62 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  63
  64 // Darwin disables omitting the leaf frame pointer even under optimization
  65 // unless the command lines are given.
  66 // RUN: %clang -### -target i386-apple-darwin -S %s 2>&1 | \
  67 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  68
  69 // RUN: %clang -### -target i386-apple-darwin -S -O1 %s 2>&1 | \
  70 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
  71
  72 // RUN: %clang -### -target i386-darwin -S -fomit-frame-pointer %s 2>&1 | \
  73 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
  74
  75 // RUN: %clang -### -target i386-darwin -S -momit-leaf-frame-pointer %s 2>&1 | \
  76 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  77
  78 // RUN: %clang -### -target armv7s-apple-ios -fomit-frame-pointer %s 2>&1 | \
  79 // RUN:   FileCheck --check-prefix=WARN-OMIT-7S %s
  80 // WARN-OMIT-7S: warning: optimization flag '-fomit-frame-pointer' is not supported for target 'armv7s'
  81 // WARN-OMIT-7S: "-mframe-pointer=all"
  82
  83 // RUN: %clang -### -target armv7k-apple-watchos -fomit-frame-pointer %s 2>&1 | \
  84 // RUN:   FileCheck --check-prefix=WARN-OMIT-7K %s
  85 // WARN-OMIT-7K: warning: optimization flag '-fomit-frame-pointer' is not supported for target 'armv7k'
  86 // WARN-OMIT-7K: "-mframe-pointer=all"
  87
  88 // RUN: %clang -### -target armv7s-apple-ios8.0 -momit-leaf-frame-pointer %s 2>&1 | \
  89 // RUN:   FileCheck --check-prefix=WARN-OMIT-LEAF-7S %s
  90 // WARN-OMIT-LEAF-7S-NOT: warning: optimization flag '-momit-leaf-frame-pointer' is not supported for target 'armv7s'
  91 // WARN-OMIT-LEAF-7S: "-mframe-pointer=non-leaf"
  92
  93 // On AArch64, PS4, PS5, and VE, default to omitting the frame pointer on leaf
  94 // functions
  95 // RUN: %clang -### -target aarch64 -S %s 2>&1 | \
  96 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  97 // RUN: %clang -### -target x86_64-scei-ps4 -S %s 2>&1 | \
  98 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
  99 // RUN: %clang -### -target x86_64-scei-ps4 -S -O2 %s 2>&1 | \
 100 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
 101 // RUN: %clang -### -target x86_64-sie-ps5 -S %s 2>&1 | \
 102 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
 103 // RUN: %clang -### -target x86_64-sie-ps5 -S -O2 %s 2>&1 | \
 104 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
 105 // RUN: %clang -### -target aarch64-apple-darwin -arch arm64_32 -S %s 2>&1 | \
 106 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
 107 // RUN: %clang -### -target ve-unknown-linux-gnu -S %s 2>&1 | \
 108 // RUN:   FileCheck --check-prefix=KEEP-NON-LEAF %s
 109
 110 // RUN: %clang -### -target powerpc64 -S %s 2>&1 | \
 111 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 112 // RUN: %clang -### -target powerpc64 -S -O1 %s 2>&1 | \
 113 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
 114
 115 // For AAarch32 (A32, T32) linux targets, default omit frame pointer when
 116 // optimizations are enabled.
 117 // RUN: %clang -### -target arm-linux-gnueabihf- -marm -S %s 2>&1 | \
 118 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 119 // RUN: %clang -### -target arm-linux-gnueabihf- -mthumb -S %s 2>&1 | \
 120 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 121 // RUN: %clang -### -target arm-linux-gnueabihf- -marm -mbig-endian -S %s 2>&1 | \
 122 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 123 // RUN: %clang -### -target arm-linux-gnueabihf- -mthumb -mbig-endian -S %s 2>&1 | \
 124 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 125 // RUN: %clang -### -target arm-linux-gnueabihf- -marm -O1 -S %s 2>&1 | \
 126 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
 127 // RUN: %clang -### -target arm-linux-gnueabihf- -mthumb -O1 -S %s 2>&1 | \
 128 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
 129 // RUN: %clang -### -target arm-linux-gnueabihf- -marm -mbig-endian -O1 -S %s 2>&1 | \
 130 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
 131 // RUN: %clang -### -target arm-linux-gnueabihf- -mthumb -mbig-endian -O1 -S %s 2>&1 | \
 132 // RUN:   FileCheck --check-prefix=KEEP-NONE %s
 133 // For Android, keep the framepointers always.
 134 // RUN: %clang -### -target armv7a-linux-androideabi- -marm -O1 -S %s 2>&1 | \
 135 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 136 // RUN: %clang -### -target armv7a-linux-androideabi- -mthumb -O1 -S %s 2>&1 | \
 137 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 138 // RUN: %clang -### -target armv7a-linux-androideabi- -marm -mbig-endian -O1 -S %s 2>&1 | \
 139 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 140 // RUN: %clang -### -target armv7a-linux-androideabi- -mthumb -mbig-endian -O1 -S %s 2>&1 | \
 141 // RUN:   FileCheck --check-prefix=KEEP-ALL %s
 142
 143 void f0() {}
 144 void f1() { f0(); }