From 2dce137d926150d34ff7a3650da48c211e34771a Mon Sep 17 00:00:00 2001
From: LemonBoy <thatlemon@gmail.com>
Date: Wed, 8 May 2019 23:54:43 +0200
Subject: [PATCH] compiler-rt: Add __extendsfdf2

Add AEABI builtin __aeabi_f2d
---
 std/special/compiler_rt.zig             |  3 +++
 std/special/compiler_rt/extendXfYf2.zig | 14 ++++++++++----
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/std/special/compiler_rt.zig b/std/special/compiler_rt.zig
index 8784aa2b19..2f2c901f94 100644
--- a/std/special/compiler_rt.zig
+++ b/std/special/compiler_rt.zig
@@ -92,6 +92,8 @@ comptime {
 
     @export("__truncdfsf2", @import("compiler_rt/truncXfYf2.zig").__truncdfsf2, linkage);
 
+    @export("__extendsfdf2", @import("compiler_rt/extendXfYf2.zig").__extendsfdf2, linkage);
+
     @export("__fixunssfsi", @import("compiler_rt/fixunssfsi.zig").__fixunssfsi, linkage);
     @export("__fixunssfdi", @import("compiler_rt/fixunssfdi.zig").__fixunssfdi, linkage);
     @export("__fixunssfti", @import("compiler_rt/fixunssfti.zig").__fixunssfti, linkage);
@@ -161,6 +163,7 @@ comptime {
         @export("__aeabi_memcmp4", __aeabi_memcmp, linkage);
         @export("__aeabi_memcmp8", __aeabi_memcmp, linkage);
 
+        @export("__aeabi_f2d", @import("compiler_rt/extendXfYf2.zig").__extendsfdf2, linkage);
         @export("__aeabi_i2d", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);
         @export("__aeabi_l2d", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);
         @export("__aeabi_ui2d", @import("compiler_rt/floatunsidf.zig").__floatunsidf, linkage);
diff --git a/std/special/compiler_rt/extendXfYf2.zig b/std/special/compiler_rt/extendXfYf2.zig
index 953072b9e3..42559784bb 100644
--- a/std/special/compiler_rt/extendXfYf2.zig
+++ b/std/special/compiler_rt/extendXfYf2.zig
@@ -2,21 +2,27 @@ const std = @import("std");
 const builtin = @import("builtin");
 const is_test = builtin.is_test;
 
+pub extern fn __extendsfdf2(a: f32) f64 {
+    return @inlineCall(extendXfYf2, f64, f32, @bitCast(u32, a));
+}
+
 pub extern fn __extenddftf2(a: f64) f128 {
-    return extendXfYf2(f128, f64, @bitCast(u64, a));
+    return @inlineCall(extendXfYf2, f128, f64, @bitCast(u64, a));
 }
 
 pub extern fn __extendsftf2(a: f32) f128 {
-    return extendXfYf2(f128, f32, @bitCast(u32, a));
+    return @inlineCall(extendXfYf2, f128, f32, @bitCast(u32, a));
 }
 
 pub extern fn __extendhfsf2(a: u16) f32 {
-    return extendXfYf2(f32, f16, a);
+    return @inlineCall(extendXfYf2, f32, f16, a);
 }
 
 const CHAR_BIT = 8;
 
-inline fn extendXfYf2(comptime dst_t: type, comptime src_t: type, a: @IntType(false, @typeInfo(src_t).Float.bits)) dst_t {
+fn extendXfYf2(comptime dst_t: type, comptime src_t: type, a: @IntType(false, @typeInfo(src_t).Float.bits)) dst_t {
+    @setRuntimeSafety(builtin.is_test);
+
     const src_rep_t = @IntType(false, @typeInfo(src_t).Float.bits);
     const dst_rep_t = @IntType(false, @typeInfo(dst_t).Float.bits);
     const srcSigBits = std.math.floatMantissaBits(src_t);