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Update float conversion into LLVM.

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This commit is contained in:
Christoffer Lerno
2021-07-16 15:21:56 +02:00
parent 45a3c8ae50
commit caecbebd0f
1 changed files with 16 additions and 2 deletions
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18
src/compiler/llvm_codegen_expr.c
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@@ -3,6 +3,7 @@
// a copy of which can be found in the LICENSE file.
#include "llvm_codegen_internal.h"
#include <math.h>
static void gencontext_emit_unary_expr(GenContext *context, BEValue *value, Expr *expr);
static inline void llvm_emit_post_inc_dec(GenContext *c, BEValue *value, Expr *expr, int diff, bool use_mod);
@@ -2178,7 +2179,20 @@ void gencontext_emit_ternary_expr(GenContext *c, BEValue *value, Expr *expr)
llvm_value_set(value, phi, expr->type);
}
static LLVMValueRef llvm_emit_real(LLVMTypeRef type, long double f)
{
if (isnan(f))
{
return LLVMConstReal(type, nan(""));
}
if (isinf(f))
{
return LLVMConstReal(type, f < 0 ? -INFINITY : INFINITY);
}
scratch_buffer_clear();
global_context.scratch_buffer_len = sprintf(global_context.scratch_buffer, "%La", f);
return LLVMConstRealOfStringAndSize(type, global_context.scratch_buffer, global_context.scratch_buffer_len);
}
static void llvm_emit_const_expr(GenContext *c, BEValue *be_value, Expr *expr)
{
@@ -2196,7 +2210,7 @@ static void llvm_emit_const_expr(GenContext *c, BEValue *be_value, Expr *expr)
}
return;
case ALL_FLOATS:
llvm_value_set(be_value, LLVMConstReal(llvm_get_type(c, type), (double) expr->const_expr.f), type);
llvm_value_set(be_value, llvm_emit_real(llvm_get_type(c, type), expr->const_expr.f), type);
return;
case TYPE_POINTER:
llvm_value_set(be_value, LLVMConstNull(llvm_get_type(c, type)), type);