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ac: add ac_build_fmin/fmax helpers 

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Marek Olšák 2018-01-02 03:59:43 +01:00
parent 581507f10a
commit a140aeb619
2 changed files with 22 additions and 15 deletions
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32
src/amd/common/ac_llvm_build.c
View File

@ -1222,6 +1222,22 @@ ac_build_umsb(struct ac_llvm_context *ctx,
LLVMConstInt(ctx->i32, -1, true), msb, "");
}
LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b)
{
LLVMValueRef args[2] = {a, b};
return ac_build_intrinsic(ctx, "llvm.minnum.f32", ctx->f32, args, 2,
AC_FUNC_ATTR_READNONE);
}
LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b)
{
LLVMValueRef args[2] = {a, b};
return ac_build_intrinsic(ctx, "llvm.maxnum.f32", ctx->f32, args, 2,
AC_FUNC_ATTR_READNONE);
}
LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b)
{
@ -1232,20 +1248,8 @@ LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value)
{
if (HAVE_LLVM >= 0x0500) {
LLVMValueRef max[2] = {
value,
LLVMConstReal(ctx->f32, 0),
};
LLVMValueRef min[2] = {
LLVMConstReal(ctx->f32, 1),
};
min[1] = ac_build_intrinsic(ctx, "llvm.maxnum.f32",
ctx->f32, max, 2,
AC_FUNC_ATTR_READNONE);
return ac_build_intrinsic(ctx, "llvm.minnum.f32",
ctx->f32, min, 2,
AC_FUNC_ATTR_READNONE);
return ac_build_fmin(ctx, ac_build_fmax(ctx, value, ctx->f32_0),
ctx->f32_1);
}
LLVMValueRef args[3] = {

5
src/amd/common/ac_llvm_build.h
View File

@ -244,7 +244,10 @@ LLVMValueRef ac_build_imsb(struct ac_llvm_context *ctx,
LLVMValueRef ac_build_umsb(struct ac_llvm_context *ctx,
LLVMValueRef arg,
LLVMTypeRef dst_type);
LLVMValueRef ac_build_fmin(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef ac_build_fmax(struct ac_llvm_context *ctx, LLVMValueRef a,
LLVMValueRef b);
LLVMValueRef ac_build_umin(struct ac_llvm_context *ctx, LLVMValueRef a, LLVMValueRef b);
LLVMValueRef ac_build_clamp(struct ac_llvm_context *ctx, LLVMValueRef value);