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-rw-r--r--src/amd/common/ac_llvm_util.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/amd/common/ac_llvm_util.c b/src/amd/common/ac_llvm_util.c
index 0c8dbf1ec51..678bc34e6f8 100644
--- a/src/amd/common/ac_llvm_util.c
+++ b/src/amd/common/ac_llvm_util.c
@@ -34,6 +34,7 @@
#include <llvm-c/Transforms/Utils.h>
#endif
#include "c11/threads.h"
+#include "gallivm/lp_bld_misc.h"
#include "util/u_math.h"
#include <assert.h>
@@ -55,9 +56,13 @@ static void ac_init_llvm_target()
* https://reviews.llvm.org/D26348
*
* "mesa" is the prefix for error messages.
+ *
+ * -global-isel-abort=2 is a no-op unless global isel has been enabled.
+ * This option tells the backend to fall-back to SelectionDAG and print
+ * a diagnostic message if global isel fails.
*/
- const char *argv[2] = { "mesa", "-simplifycfg-sink-common=false" };
- LLVMParseCommandLineOptions(2, argv, NULL);
+ const char *argv[3] = { "mesa", "-simplifycfg-sink-common=false", "-global-isel-abort=2" };
+ LLVMParseCommandLineOptions(3, argv, NULL);
}
static once_flag ac_init_llvm_target_once_flag = ONCE_FLAG_INIT;
@@ -164,6 +169,8 @@ static LLVMTargetMachineRef ac_create_target_machine(enum radeon_family family,
if (out_triple)
*out_triple = triple;
+ if (tm_options & AC_TM_ENABLE_GLOBAL_ISEL)
+ ac_enable_global_isel(tm);
return tm;
}