diff options
author | Justin Holewinski <justin.holewinski@gmail.com> | 2011-06-17 12:12:42 +0000 |
---|---|---|
committer | Justin Holewinski <justin.holewinski@gmail.com> | 2011-06-17 12:12:42 +0000 |
commit | 707fd44038edf9ec0d3fe7b99d51e7c71e36f9d0 (patch) | |
tree | 85388ccb43c10f0f9e8bd902b7a794e2071fd943 /test/CodeGen | |
parent | f1b7e94add71403c52ae00faf7b0528b76fb6e55 (diff) | |
download | llvm-707fd44038edf9ec0d3fe7b99d51e7c71e36f9d0.tar.gz llvm-707fd44038edf9ec0d3fe7b99d51e7c71e36f9d0.tar.bz2 llvm-707fd44038edf9ec0d3fe7b99d51e7c71e36f9d0.tar.xz |
PTX: Adjust rounding modes
* rounding modes for fp add, mul, sub now use .rn
* float -> int rounding correctly uses .rzi not .rni
* 32bit fdiv for sm13 uses div.rn (instead of div.approx)
* 32bit fdiv for sm10 now uses div (instead of div.approx)
Approx is not IEEE 754 compatible (and should be optionally set by a flag to the backend instead). The .rn rounding modifier is the PTX default anyway, but it's better to be explicit.
All these modifiers should be available by using __fmul_rz functions for example, but support will need to be added for this in the backend.
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133253 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
-rw-r--r-- | test/CodeGen/PTX/add.ll | 8 | ||||
-rw-r--r-- | test/CodeGen/PTX/cvt.ll | 16 | ||||
-rw-r--r-- | test/CodeGen/PTX/fdiv-sm10.ll | 2 | ||||
-rw-r--r-- | test/CodeGen/PTX/fdiv-sm13.ll | 2 | ||||
-rw-r--r-- | test/CodeGen/PTX/mul.ll | 8 | ||||
-rw-r--r-- | test/CodeGen/PTX/sub.ll | 8 |
6 files changed, 22 insertions, 22 deletions
diff --git a/test/CodeGen/PTX/add.ll b/test/CodeGen/PTX/add.ll index b89a2f6269..c16be4933c 100644 --- a/test/CodeGen/PTX/add.ll +++ b/test/CodeGen/PTX/add.ll @@ -22,14 +22,14 @@ define ptx_device i64 @t1_u64(i64 %x, i64 %y) { } define ptx_device float @t1_f32(float %x, float %y) { -; CHECK: add.f32 r0, r1, r2 +; CHECK: add.rn.f32 r0, r1, r2 ; CHECK-NEXT: ret; %z = fadd float %x, %y ret float %z } define ptx_device double @t1_f64(double %x, double %y) { -; CHECK: add.f64 rd0, rd1, rd2 +; CHECK: add.rn.f64 rd0, rd1, rd2 ; CHECK-NEXT: ret; %z = fadd double %x, %y ret double %z @@ -57,14 +57,14 @@ define ptx_device i64 @t2_u64(i64 %x) { } define ptx_device float @t2_f32(float %x) { -; CHECK: add.f32 r0, r1, 0F3F800000; +; CHECK: add.rn.f32 r0, r1, 0F3F800000; ; CHECK-NEXT: ret; %z = fadd float %x, 1.0 ret float %z } define ptx_device double @t2_f64(double %x) { -; CHECK: add.f64 rd0, rd1, 0D3FF0000000000000; +; CHECK: add.rn.f64 rd0, rd1, 0D3FF0000000000000; ; CHECK-NEXT: ret; %z = fadd double %x, 1.0 ret double %z diff --git a/test/CodeGen/PTX/cvt.ll b/test/CodeGen/PTX/cvt.ll index 984cb4d8d5..bf18bd7921 100644 --- a/test/CodeGen/PTX/cvt.ll +++ b/test/CodeGen/PTX/cvt.ll @@ -31,7 +31,7 @@ define ptx_device i32 @cvt_pred_i64(i64 %x, i1 %y) { } define ptx_device i32 @cvt_pred_f32(float %x, i1 %y) { -; CHECK: cvt.rni.pred.f32 p0, r1; +; CHECK: cvt.rzi.pred.f32 p0, r1; ; CHECK: ret; %a = fptoui float %x to i1 %b = and i1 %a, %y @@ -40,7 +40,7 @@ define ptx_device i32 @cvt_pred_f32(float %x, i1 %y) { } define ptx_device i32 @cvt_pred_f64(double %x, i1 %y) { -; CHECK: cvt.rni.pred.f64 p0, rd1; +; CHECK: cvt.rzi.pred.f64 p0, rd1; ; CHECK: ret; %a = fptoui double %x to i1 %b = and i1 %a, %y @@ -72,14 +72,14 @@ define ptx_device i16 @cvt_i16_i64(i64 %x) { } define ptx_device i16 @cvt_i16_f32(float %x) { -; CHECK: cvt.rni.u16.f32 rh0, r1; +; CHECK: cvt.rzi.u16.f32 rh0, r1; ; CHECK: ret; %a = fptoui float %x to i16 ret i16 %a } define ptx_device i16 @cvt_i16_f64(double %x) { -; CHECK: cvt.rni.u16.f64 rh0, rd1; +; CHECK: cvt.rzi.u16.f64 rh0, rd1; ; CHECK: ret; %a = fptoui double %x to i16 ret i16 %a @@ -109,14 +109,14 @@ define ptx_device i32 @cvt_i32_i64(i64 %x) { } define ptx_device i32 @cvt_i32_f32(float %x) { -; CHECK: cvt.rni.u32.f32 r0, r1; +; CHECK: cvt.rzi.u32.f32 r0, r1; ; CHECK: ret; %a = fptoui float %x to i32 ret i32 %a } define ptx_device i32 @cvt_i32_f64(double %x) { -; CHECK: cvt.rni.u32.f64 r0, rd1; +; CHECK: cvt.rzi.u32.f64 r0, rd1; ; CHECK: ret; %a = fptoui double %x to i32 ret i32 %a @@ -146,14 +146,14 @@ define ptx_device i64 @cvt_i64_i32(i32 %x) { } define ptx_device i64 @cvt_i64_f32(float %x) { -; CHECK: cvt.rni.u64.f32 rd0, r1; +; CHECK: cvt.rzi.u64.f32 rd0, r1; ; CHECK: ret; %a = fptoui float %x to i64 ret i64 %a } define ptx_device i64 @cvt_i64_f64(double %x) { -; CHECK: cvt.rni.u64.f64 rd0, rd1; +; CHECK: cvt.rzi.u64.f64 rd0, rd1; ; CHECK: ret; %a = fptoui double %x to i64 ret i64 %a diff --git a/test/CodeGen/PTX/fdiv-sm10.ll b/test/CodeGen/PTX/fdiv-sm10.ll index 9aff25111b..eb32222f3a 100644 --- a/test/CodeGen/PTX/fdiv-sm10.ll +++ b/test/CodeGen/PTX/fdiv-sm10.ll @@ -1,7 +1,7 @@ ; RUN: llc < %s -march=ptx32 -mattr=+sm10 | FileCheck %s define ptx_device float @t1_f32(float %x, float %y) { -; CHECK: div.approx.f32 r0, r1, r2; +; CHECK: div.f32 r0, r1, r2; ; CHECK-NEXT: ret; %a = fdiv float %x, %y ret float %a diff --git a/test/CodeGen/PTX/fdiv-sm13.ll b/test/CodeGen/PTX/fdiv-sm13.ll index 84e0adab7e..ad24f35b20 100644 --- a/test/CodeGen/PTX/fdiv-sm13.ll +++ b/test/CodeGen/PTX/fdiv-sm13.ll @@ -1,7 +1,7 @@ ; RUN: llc < %s -march=ptx32 -mattr=+sm13 | FileCheck %s define ptx_device float @t1_f32(float %x, float %y) { -; CHECK: div.approx.f32 r0, r1, r2; +; CHECK: div.rn.f32 r0, r1, r2; ; CHECK-NEXT: ret; %a = fdiv float %x, %y ret float %a diff --git a/test/CodeGen/PTX/mul.ll b/test/CodeGen/PTX/mul.ll index 93f94e3509..2093556dac 100644 --- a/test/CodeGen/PTX/mul.ll +++ b/test/CodeGen/PTX/mul.ll @@ -11,28 +11,28 @@ ;} define ptx_device float @t1_f32(float %x, float %y) { -; CHECK: mul.f32 r0, r1, r2 +; CHECK: mul.rn.f32 r0, r1, r2 ; CHECK-NEXT: ret; %z = fmul float %x, %y ret float %z } define ptx_device double @t1_f64(double %x, double %y) { -; CHECK: mul.f64 rd0, rd1, rd2 +; CHECK: mul.rn.f64 rd0, rd1, rd2 ; CHECK-NEXT: ret; %z = fmul double %x, %y ret double %z } define ptx_device float @t2_f32(float %x) { -; CHECK: mul.f32 r0, r1, 0F40A00000; +; CHECK: mul.rn.f32 r0, r1, 0F40A00000; ; CHECK-NEXT: ret; %z = fmul float %x, 5.0 ret float %z } define ptx_device double @t2_f64(double %x) { -; CHECK: mul.f64 rd0, rd1, 0D4014000000000000; +; CHECK: mul.rn.f64 rd0, rd1, 0D4014000000000000; ; CHECK-NEXT: ret; %z = fmul double %x, 5.0 ret double %z diff --git a/test/CodeGen/PTX/sub.ll b/test/CodeGen/PTX/sub.ll index 9efeaace0e..4d552801a4 100644 --- a/test/CodeGen/PTX/sub.ll +++ b/test/CodeGen/PTX/sub.ll @@ -22,14 +22,14 @@ define ptx_device i64 @t1_u64(i64 %x, i64 %y) { } define ptx_device float @t1_f32(float %x, float %y) { -; CHECK: sub.f32 r0, r1, r2 +; CHECK: sub.rn.f32 r0, r1, r2 ; CHECK-NEXT: ret; %z = fsub float %x, %y ret float %z } define ptx_device double @t1_f64(double %x, double %y) { -; CHECK: sub.f64 rd0, rd1, rd2 +; CHECK: sub.rn.f64 rd0, rd1, rd2 ; CHECK-NEXT: ret; %z = fsub double %x, %y ret double %z @@ -57,14 +57,14 @@ define ptx_device i64 @t2_u64(i64 %x) { } define ptx_device float @t2_f32(float %x) { -; CHECK: add.f32 r0, r1, 0FBF800000; +; CHECK: add.rn.f32 r0, r1, 0FBF800000; ; CHECK-NEXT: ret; %z = fsub float %x, 1.0 ret float %z } define ptx_device double @t2_f64(double %x) { -; CHECK: add.f64 rd0, rd1, 0DBFF0000000000000; +; CHECK: add.rn.f64 rd0, rd1, 0DBFF0000000000000; ; CHECK-NEXT: ret; %z = fsub double %x, 1.0 ret double %z |