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ac/llvm: fix various findMSB bugs

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sffbh needs to be suffixed with ".i32"

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Marek Olšák
2017-02-17 14:26:07 +01:00
committed by Dave Airlie
parent 429f112a11
commit edd23e0606
1 changed files with 3 additions and 2 deletions
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src/amd/common/ac_llvm_build.c
+3 -2
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@@ -769,7 +769,8 @@ ac_emit_imsb(struct ac_llvm_context *ctx,
LLVMValueRef arg, LLVMValueRef arg,
LLVMTypeRef dst_type) LLVMTypeRef dst_type)
{ {
const char *intr_name = (HAVE_LLVM < 0x0400) ? "llvm.AMDGPU.flbit.i32" : "llvm.amdgcn.sffbh"; const char *intr_name = (HAVE_LLVM < 0x0400) ? "llvm.AMDGPU.flbit.i32" :
"llvm.amdgcn.sffbh.i32";
LLVMValueRef msb = ac_emit_llvm_intrinsic(ctx, intr_name, LLVMValueRef msb = ac_emit_llvm_intrinsic(ctx, intr_name,
dst_type, &arg, 1, dst_type, &arg, 1,
AC_FUNC_ATTR_READNONE); AC_FUNC_ATTR_READNONE);
@@ -796,7 +797,7 @@ ac_emit_umsb(struct ac_llvm_context *ctx,
{ {
LLVMValueRef args[2] = { LLVMValueRef args[2] = {
arg, arg,
LLVMConstInt(ctx->i32, 1, 0), LLVMConstInt(ctx->i1, 1, 0),
}; };
LLVMValueRef msb = ac_emit_llvm_intrinsic(ctx, "llvm.ctlz.i32", LLVMValueRef msb = ac_emit_llvm_intrinsic(ctx, "llvm.ctlz.i32",
dst_type, args, ARRAY_SIZE(args), dst_type, args, ARRAY_SIZE(args),