clang/test/CodeGen/mips-madd4.c

   1 // REQUIRES: mips-registered-target
   2 // RUN: %clang --target=mips64-unknown-linux -S -mmadd4    %s -o -| FileCheck %s -check-prefix=MADD4
   3 // RUN: %clang --target=mips64-unknown-linux -S -mno-madd4 %s -o -| FileCheck %s -check-prefix=NOMADD4
   4 // RUN: %clang --target=mips64-unknown-linux -S -mmadd4    -fno-honor-nans %s -o -| FileCheck %s -check-prefix=MADD4-NONAN
   5 // RUN: %clang --target=mips64-unknown-linux -S -mno-madd4 -fno-honor-nans %s -o -| FileCheck %s -check-prefix=NOMADD4-NONAN
   6
   7 float madd_s (float f, float g, float h)
   8 {
   9   return (f * g) + h;
  10 }
  11 // MADD4:   madd.s
  12 // NOMADD4: mul.s
  13 // NOMADD4: add.s
  14
  15 float msub_s (float f, float g, float h)
  16 {
  17   return (f * g) - h;
  18 }
  19 // MADD4:   msub.s
  20 // NOMADD4: mul.s
  21 // NOMADD4: sub.s
  22
  23 double madd_d (double f, double g, double h)
  24 {
  25   return (f * g) + h;
  26 }
  27 // MADD4:   madd.d
  28 // NOMADD4: mul.d
  29 // NOMADD4: add.d
  30
  31 double msub_d (double f, double g, double h)
  32 {
  33   return (f * g) - h;
  34 }
  35 // MADD4:   msub.d
  36 // NOMADD4: mul.d
  37 // NOMADD4: sub.d
  38
  39
  40 float nmadd_s (float f, float g, float h)
  41 {
  42   // FIXME: Zero has been explicitly placed to force generation of a positive
  43   // zero in IR until pattern used to match this instruction is changed to
  44   // comply with negative zero as well.
  45   return 0-((f * g) + h);
  46 }
  47 // MADD4-NONAN:   nmadd.s
  48 // NOMADD4-NONAN: mul.s
  49 // NOMADD4-NONAN: add.s
  50 // NOMADD4-NONAN: sub.s
  51
  52 float nmsub_s (float f, float g, float h)
  53 {
  54   // FIXME: Zero has been explicitly placed to force generation of a positive
  55   // zero in IR until pattern used to match this instruction is changed to
  56   // comply with negative zero as well.
  57   return 0-((f * g) - h);
  58 }
  59 // MADD4-NONAN:   nmsub.s
  60 // NOMADD4-NONAN: mul.s
  61 // NOMADD4-NONAN: sub.s
  62 // NOMADD4-NONAN: sub.s
  63
  64 double nmadd_d (double f, double g, double h)
  65 {
  66   // FIXME: Zero has been explicitly placed to force generation of a positive
  67   // zero in IR until pattern used to match this instruction is changed to
  68   // comply with negative zero as well.
  69   return 0-((f * g) + h);
  70 }
  71 // MADD4-NONAN:   nmadd.d
  72 // NOMADD4-NONAN: mul.d
  73 // NOMADD4-NONAN: add.d
  74 // NOMADD4-NONAN: sub.d
  75
  76 double nmsub_d (double f, double g, double h)
  77 {
  78   // FIXME: Zero has been explicitly placed to force generation of a positive
  79   // zero in IR until pattern used to match this instruction is changed to
  80   // comply with negative zero as well.
  81   return 0-((f * g) - h);
  82 }
  83 // MADD4-NONAN:   nmsub.d
  84 // NOMADD4-NONAN: mul.d
  85 // NOMADD4-NONAN: sub.d
  86 // NOMADD4-NONAN: sub.d
  87