clang/test/Driver/arm-float-abi-lto.c

   1 // REQUIRES: arm-registered-target
   2
   3 // RUN: %clang --target=arm-none-eabi -mcpu=cortex-m33 -mfloat-abi=hard -O1 %s -S -o - -emit-llvm -DCALL_LIB -DDEFINE_LIB | FileCheck %s
   4
   5 // RUN: %clang --target=arm-none-eabi -mcpu=cortex-m33 -mfloat-abi=hard -O1 %s -Xclang -opaque-pointers -flto=full -c -o %t.call_full.bc -DCALL_LIB
   6 // RUN: %clang --target=arm-none-eabi -mcpu=cortex-m33 -mfloat-abi=hard -O1 %s -Xclang -opaque-pointers -flto=full -c -o %t.define_full.bc -DDEFINE_LIB
   7 // RUN: llvm-lto2 run -lto-opaque-pointers -o %t.lto_full -save-temps %t.call_full.bc %t.define_full.bc \
   8 // RUN:  -r %t.call_full.bc,fn,px \
   9 // RUN:  -r %t.call_full.bc,fwrite,l \
  10 // RUN:  -r %t.call_full.bc,putchar,l \
  11 // RUN:  -r %t.call_full.bc,stdout,px \
  12 // RUN:  -r %t.define_full.bc,fwrite,px \
  13 // RUN:  -r %t.define_full.bc,putchar,px \
  14 // RUN:  -r %t.define_full.bc,otherfn,px
  15 // RUN: llvm-dis %t.lto_full.0.4.opt.bc -o - | FileCheck %s
  16
  17 // RUN: %clang --target=arm-none-eabi -mcpu=cortex-m33 -mfloat-abi=hard -O1 %s -Xclang -opaque-pointers -flto=thin -c -o %t.call_thin.bc -DCALL_LIB
  18 // RUN: %clang --target=arm-none-eabi -mcpu=cortex-m33 -mfloat-abi=hard -O1 %s -Xclang -opaque-pointers -flto=thin -c -o %t.define_thin.bc -DDEFINE_LIB
  19 // RUN: llvm-lto2 run -lto-opaque-pointers -o %t.lto_thin -save-temps %t.call_thin.bc %t.define_thin.bc \
  20 // RUN:  -r %t.call_thin.bc,fn,px \
  21 // RUN:  -r %t.call_thin.bc,fwrite,l \
  22 // RUN:  -r %t.call_thin.bc,putchar,l \
  23 // RUN:  -r %t.call_thin.bc,stdout,px \
  24 // RUN:  -r %t.define_thin.bc,fwrite,px \
  25 // RUN:  -r %t.define_thin.bc,putchar,px \
  26 // RUN:  -r %t.define_thin.bc,otherfn,px
  27 // RUN: llvm-dis %t.lto_thin.1.4.opt.bc -o - | FileCheck %s
  28
  29 // We expect that the fprintf is optimised to fwrite, and the printf is
  30 // optimised to putchar. Check that we don't have a mismatch in calling
  31 // conventions causing the call to be replaced by a trap.
  32 // CHECK-LABEL: define{{.*}}void @fn()
  33 // CHECK-NOT: call void @llvm.trap()
  34
  35 typedef struct FILE FILE;
  36 typedef unsigned int size_t;
  37 extern FILE *stdout;
  38 extern int fprintf(FILE *, const char *, ...);
  39 extern int printf(const char *, ...);
  40 extern void otherfn(const void *);
  41
  42 #ifdef CALL_LIB
  43
  44 void fn() {
  45   fprintf(stdout, "hello world");
  46   printf("a");
  47 }
  48
  49 #endif
  50
  51 #ifdef DEFINE_LIB
  52
  53 size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream) {
  54   otherfn(ptr);
  55   return 0;
  56 }
  57
  58 int putchar(int c) {
  59   otherfn(&c);
  60   return 0;
  61 }
  62
  63 #endif