[Mesa-dev] [PATCH] radeon/llvm: Use llvm.AMDIL.exp intrinsic again for now

Michel Dänzer michel at daenzer.net
Wed Nov 18 18:31:55 PST 2015


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

llvm.exp2.f32 doesn't work in some cases yet.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92709
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---

Once the problem is fixed in the LLVM AMDGPU backend, we can re-enable
llvm.exp2.f32 for the fixed LLVM version.

 src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
index ac99e73..c94f109 100644
--- a/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
+++ b/src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
@@ -1539,7 +1539,7 @@ void radeon_llvm_context_init(struct radeon_llvm_context * ctx)
 	bld_base->op_actions[TGSI_OPCODE_ENDIF].emit = endif_emit;
 	bld_base->op_actions[TGSI_OPCODE_ENDLOOP].emit = endloop_emit;
 	bld_base->op_actions[TGSI_OPCODE_EX2].emit = build_tgsi_intrinsic_nomem;
-	bld_base->op_actions[TGSI_OPCODE_EX2].intr_name = "llvm.exp2.f32";
+	bld_base->op_actions[TGSI_OPCODE_EX2].intr_name = "llvm.AMDIL.exp.";
 	bld_base->op_actions[TGSI_OPCODE_FLR].emit = build_tgsi_intrinsic_nomem;
 	bld_base->op_actions[TGSI_OPCODE_FLR].intr_name = "llvm.floor.f32";
 	bld_base->op_actions[TGSI_OPCODE_FMA].emit = build_tgsi_intrinsic_nomem;
-- 
2.6.2



More information about the mesa-dev mailing list