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authorTom Stellard <[email protected]>2018-07-20 19:54:56 +0200
committerMarek Olšák <[email protected]>2018-07-23 20:23:48 -0400
commit0866edede0116e33b4bed28737e4d242ad0da2ad (patch)
tree8da9f3af24c019124ccb95302b52364082b3ce76 /src/gallium/drivers
parent820d5e51b7060f02d6c12fbb1c349111022ff37a (diff)
radeonsi: Add debug option to enable LLVM GlobalISel (v2)
R600_DEBUG=gisel will tell LLVM to use GlobalISel rather than SelectionDAG for instruction selection. v2: mareko: move the helper to src/amd/common Signed-off-by: Marek Olšák <[email protected]> Reviewed-by: Tom Stellard <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/radeonsi/si_pipe.c3
-rw-r--r--src/gallium/drivers/radeonsi/si_pipe.h1
2 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index d3d0c0ef075..9823ddbaf83 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -57,6 +57,7 @@ static const struct debug_named_value debug_options[] = {
/* Shader compiler options the shader cache should be aware of: */
{ "unsafemath", DBG(UNSAFE_MATH), "Enable unsafe math shader optimizations" },
{ "sisched", DBG(SI_SCHED), "Enable LLVM SI Machine Instruction Scheduler." },
+ { "gisel", DBG(GISEL), "Enable LLVM global instruction selector." },
/* Shader compiler options (with no effect on the shader cache): */
{ "checkir", DBG(CHECK_IR), "Enable additional sanity checks on shader IR" },
@@ -109,6 +110,7 @@ static void si_init_compiler(struct si_screen *sscreen,
{
enum ac_target_machine_options tm_options =
(sscreen->debug_flags & DBG(SI_SCHED) ? AC_TM_SISCHED : 0) |
+ (sscreen->debug_flags & DBG(GISEL) ? AC_TM_ENABLE_GLOBAL_ISEL : 0) |
(sscreen->info.chip_class >= GFX9 ? AC_TM_FORCE_ENABLE_XNACK : 0) |
(sscreen->info.chip_class < GFX9 ? AC_TM_FORCE_DISABLE_XNACK : 0) |
(!sscreen->llvm_has_working_vgpr_indexing ? AC_TM_PROMOTE_ALLOCA_TO_SCRATCH : 0) |
@@ -756,6 +758,7 @@ static void si_disk_cache_create(struct si_screen *sscreen)
/* These flags affect shader compilation. */
#define ALL_FLAGS (DBG(FS_CORRECT_DERIVS_AFTER_KILL) | \
DBG(SI_SCHED) | \
+ DBG(GISEL) | \
DBG(UNSAFE_MATH) | \
DBG(NIR))
uint64_t shader_debug_flags = sscreen->debug_flags &
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 301c168c952..4a3e8bba18e 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -121,6 +121,7 @@ enum {
DBG_FS_CORRECT_DERIVS_AFTER_KILL,
DBG_UNSAFE_MATH,
DBG_SI_SCHED,
+ DBG_GISEL,
/* Shader compiler options (with no effect on the shader cache): */
DBG_CHECK_IR,