From fa7fd8ec31e5738c6a0bce1f2086e40158febffd Mon Sep 17 00:00:00 2001
From: Dmitry Preobrazhensky <d-pre@mail.ru>
Date: Thu, 28 Jul 2022 14:20:05 +0300
Subject: [PATCH] [AMDGPU][MC][GFX11] Disable SGPRs for src1 of v_fma_mix*_dpp
 opcodes

Differential Revision: https://reviews.llvm.org/D130634
---
 llvm/lib/Target/AMDGPU/VOP3PInstructions.td |  2 +-
 llvm/test/MC/AMDGPU/gfx11_err.s             | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Target/AMDGPU/VOP3PInstructions.td b/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
index f1ce613..b300e1a 100644
--- a/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
+++ b/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
@@ -35,7 +35,7 @@ class VOP3P_Mix_Profile<VOPProfile P, VOP3Features Features = VOP3_REGULAR,
                FP16InputMods:$src2_modifiers, VCSrc_f16:$src2);
     dag dpp_srcs =
           (ins FPVRegInputMods:$src0_modifiers, VGPRSrc_32:$src0,
-               FP16InputMods:$src1_modifiers, VCSrc_f16:$src1,
+               FPVRegInputMods:$src1_modifiers, VGPRSrc_32:$src1,
                FP16InputMods:$src2_modifiers, VCSrc_f16:$src2);
 
            // FIXME: clampmod0 misbehaves with the non-default vdst_in
diff --git a/llvm/test/MC/AMDGPU/gfx11_err.s b/llvm/test/MC/AMDGPU/gfx11_err.s
index 2d1cfe2..10fd2dd 100644
--- a/llvm/test/MC/AMDGPU/gfx11_err.s
+++ b/llvm/test/MC/AMDGPU/gfx11_err.s
@@ -83,3 +83,21 @@ v_cmp_class_f16_e64_dpp s105, s2, v2 row_ror:15
 
 v_cmpx_class_f32_e64_dpp s1, v2 dpp8:[7,6,5,4,3,2,1,0] fi:1
 // GFX11: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mix_f32_e64_dpp v5, s1, v3, v4 quad_perm:[3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mix_f32_e64_dpp v5, v1, s3, v4 quad_perm:[3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mix_f32_e64_dpp v5, s1, v3, v4 dpp8:[7,6,5,4,3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mix_f32_e64_dpp v5, v1, s3, v4 dpp8:[7,6,5,4,3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mixhi_f16_e64_dpp v5, v1, 0, v4 quad_perm:[3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
+
+v_fma_mixlo_f16_e64_dpp v5, v1, 1, v4 dpp8:[7,6,5,4,3,2,1,0]
+// GFX11: [[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
-- 
2.7.4