[Mesa-dev] [PATCH 1/2] AMDGPU: Add intrinsic for sampling with bias on SI.

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>


Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 lib/Target/AMDGPU/SIInstructions.td |    9 ++++++++-
 lib/Target/AMDGPU/SIIntrinsics.td   |    1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/Target/AMDGPU/SIInstructions.td b/lib/Target/AMDGPU/SIInstructions.td
index bdac6a4..aa31bb5 100644
--- a/lib/Target/AMDGPU/SIInstructions.td
+++ b/lib/Target/AMDGPU/SIInstructions.td
@@ -498,7 +498,7 @@ def IMAGE_SAMPLE : MIMG_Load_Helper <0x00000020, "IMAGE_SAMPLE">;
 //def IMAGE_SAMPLE_D : MIMG_NoPattern_ <"IMAGE_SAMPLE_D", 0x00000022>;
 //def IMAGE_SAMPLE_D_CL : MIMG_NoPattern_ <"IMAGE_SAMPLE_D_CL", 0x00000023>;
 //def IMAGE_SAMPLE_L : MIMG_NoPattern_ <"IMAGE_SAMPLE_L", 0x00000024>;
-//def IMAGE_SAMPLE_B : MIMG_NoPattern_ <"IMAGE_SAMPLE_B", 0x00000025>;
+def IMAGE_SAMPLE_B : MIMG_Load_Helper <0x00000025, "IMAGE_SAMPLE_B">;
 //def IMAGE_SAMPLE_B_CL : MIMG_NoPattern_ <"IMAGE_SAMPLE_B_CL", 0x00000026>;
 //def IMAGE_SAMPLE_LZ : MIMG_NoPattern_ <"IMAGE_SAMPLE_LZ", 0x00000027>;
 //def IMAGE_SAMPLE_C : MIMG_NoPattern_ <"IMAGE_SAMPLE_C", 0x00000028>;
@@ -1131,6 +1131,13 @@ def : Pat <
                 SReg_256:$rsrc, SReg_128:$sampler)
 >;
 
+/* int_SI_sample_bias */
+def : Pat <
+  (int_SI_sample_bias imm:$writemask, VReg_128:$coord, SReg_256:$rsrc, SReg_128:$sampler),
+  (IMAGE_SAMPLE_B imm:$writemask, 0, 0, 0, 0, 0, 0, 0, VReg_128:$coord,
+                  SReg_256:$rsrc, SReg_128:$sampler)
+>;
+
 def CLAMP_SI : CLAMP<VReg_32>;
 def FABS_SI : FABS<VReg_32>;
 def FNEG_SI : FNEG<VReg_32>;
diff --git a/lib/Target/AMDGPU/SIIntrinsics.td b/lib/Target/AMDGPU/SIIntrinsics.td
index f8974d8..f8039d1 100644
--- a/lib/Target/AMDGPU/SIIntrinsics.td
+++ b/lib/Target/AMDGPU/SIIntrinsics.td
@@ -23,6 +23,7 @@ let TargetPrefix = "SI", isTarget = 1 in {
   def int_SI_wqm : Intrinsic <[], [], []>;
 
   def int_SI_sample : Intrinsic <[llvm_v4f32_ty], [llvm_i32_ty, llvm_v4f32_ty, llvm_v8i32_ty, llvm_v4i32_ty], [IntrReadMem]>;
+  def int_SI_sample_bias : Intrinsic <[llvm_v4f32_ty], [llvm_i32_ty, llvm_v4f32_ty, llvm_v8i32_ty, llvm_v4i32_ty], [IntrReadMem]>;
 
   /* Interpolation Intrinsics */
 
-- 
1.7.10.4