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Use builtin intrinsic for float/integer conversion (#719)

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This commit is contained in:
Huang Qi
2021-09-02 18:19:19 +08:00
committed by GitHub
parent cef7d35be1
commit 3953f819bc
2 changed files with 234 additions and 45 deletions
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37
core/iwasm/compilation/aot_emit_compare.c
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@ -4,6 +4,7 @@
*/
#include "aot_emit_compare.h"
#include "aot_intrinsic.h"
static bool
int_cond_to_llvm_op(IntCond cond, LLVMIntPredicate *op)
@ -157,7 +158,23 @@ aot_compile_op_f32_compare(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
POP_F32(rhs);
POP_F32(lhs);
if (!(res = LLVMBuildFCmp(comp_ctx->builder, op, lhs, rhs, "f32_cmp"))) {
if (comp_ctx->disable_llvm_intrinsics && aot_intrinsic_check_capability(comp_ctx, "f32_cmp"))
{
LLVMTypeRef param_types[3];
LLVMValueRef opcond = LLVMConstInt(I32_TYPE, cond, true);
param_types[0] = I32_TYPE;
param_types[1] = F32_TYPE;
param_types[2] = F32_TYPE;
res = aot_call_llvm_intrinsic(comp_ctx, func_ctx, "f32_cmp", I32_TYPE, param_types, 3, opcond, lhs, rhs);
res = LLVMBuildIntCast(comp_ctx->builder, res, INT1_TYPE, "bit_cast");
}
else
{
res = LLVMBuildFCmp(comp_ctx->builder, op, lhs, rhs, "f32_cmp");
}
if (!res)
{
aot_set_last_error("llvm build compare failed.");
return false;
}
@ -183,7 +200,23 @@ aot_compile_op_f64_compare(AOTCompContext *comp_ctx, AOTFuncContext *func_ctx,
POP_F64(rhs);
POP_F64(lhs);
if (!(res = LLVMBuildFCmp(comp_ctx->builder, op, lhs, rhs, "f64_cmp"))) {
if (comp_ctx->disable_llvm_intrinsics && aot_intrinsic_check_capability(comp_ctx, "f64_cmp"))
{
LLVMTypeRef param_types[3];
LLVMValueRef opcond = LLVMConstInt(I32_TYPE, cond, true);
param_types[0] = I32_TYPE;
param_types[1] = F64_TYPE;
param_types[2] = F64_TYPE;
res = aot_call_llvm_intrinsic(comp_ctx, func_ctx, "f64_cmp", I32_TYPE, param_types, 3, opcond, lhs, rhs);
res = LLVMBuildIntCast(comp_ctx->builder, res, INT1_TYPE, "bit_cast");
}
else
{
res = LLVMBuildFCmp(comp_ctx->builder, op, lhs, rhs, "f64_cmp");
}
if (!res)
{
aot_set_last_error("llvm build compare failed.");
return false;
}