From 379d128cba904a7599ebb191afa0873ef1a633cc Mon Sep 17 00:00:00 2001
From: Jeff Anderson <kj4tmp@gmail.com>
Date: Sat, 31 Jan 2026 17:18:42 -0800
Subject: [PATCH] libzigc: roundf

---
 lib/libc/musl/src/math/aarch64/roundf.c   |  7 -----
 lib/libc/musl/src/math/powerpc64/roundf.c | 15 ----------
 lib/libc/musl/src/math/roundf.c           | 36 -----------------------
 lib/libc/musl/src/math/s390x/roundf.c     | 15 ----------
 src/libs/musl.zig                         |  4 ---
 src/libs/wasi_libc.zig                    |  1 -
 test/libc.zig                             |  2 +-
 7 files changed, 1 insertion(+), 79 deletions(-)
 delete mode 100644 lib/libc/musl/src/math/aarch64/roundf.c
 delete mode 100644 lib/libc/musl/src/math/powerpc64/roundf.c
 delete mode 100644 lib/libc/musl/src/math/roundf.c
 delete mode 100644 lib/libc/musl/src/math/s390x/roundf.c

diff --git a/lib/libc/musl/src/math/aarch64/roundf.c b/lib/libc/musl/src/math/aarch64/roundf.c
deleted file mode 100644
index 91637eaa12..0000000000
--- a/lib/libc/musl/src/math/aarch64/roundf.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <math.h>
-
-float roundf(float x)
-{
-	__asm__ ("frinta %s0, %s1" : "=w"(x) : "w"(x));
-	return x;
-}
diff --git a/lib/libc/musl/src/math/powerpc64/roundf.c b/lib/libc/musl/src/math/powerpc64/roundf.c
deleted file mode 100644
index ae93f999ab..0000000000
--- a/lib/libc/musl/src/math/powerpc64/roundf.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <math.h>
-
-#ifdef _ARCH_PWR5X
-
-float roundf(float x)
-{
-	__asm__ ("frin %0, %1" : "=f"(x) : "f"(x));
-	return x;
-}
-
-#else
-
-#include "../roundf.c"
-
-#endif
diff --git a/lib/libc/musl/src/math/roundf.c b/lib/libc/musl/src/math/roundf.c
deleted file mode 100644
index e8210af562..0000000000
--- a/lib/libc/musl/src/math/roundf.c
+++ /dev/null
@@ -1,36 +0,0 @@
-#include "libm.h"
-
-#if FLT_EVAL_METHOD==0
-#define EPS FLT_EPSILON
-#elif FLT_EVAL_METHOD==1
-#define EPS DBL_EPSILON
-#elif FLT_EVAL_METHOD==2
-#define EPS LDBL_EPSILON
-#endif
-static const float_t toint = 1/EPS;
-
-float roundf(float x)
-{
-	union {float f; uint32_t i;} u = {x};
-	int e = u.i >> 23 & 0xff;
-	float_t y;
-
-	if (e >= 0x7f+23)
-		return x;
-	if (u.i >> 31)
-		x = -x;
-	if (e < 0x7f-1) {
-		FORCE_EVAL(x + toint);
-		return 0*u.f;
-	}
-	y = x + toint - toint - x;
-	if (y > 0.5f)
-		y = y + x - 1;
-	else if (y <= -0.5f)
-		y = y + x + 1;
-	else
-		y = y + x;
-	if (u.i >> 31)
-		y = -y;
-	return y;
-}
diff --git a/lib/libc/musl/src/math/s390x/roundf.c b/lib/libc/musl/src/math/s390x/roundf.c
deleted file mode 100644
index 46d2e10c87..0000000000
--- a/lib/libc/musl/src/math/s390x/roundf.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <math.h>
-
-#if defined(__HTM__) || __ARCH__ >= 9
-
-float roundf(float x)
-{
-	__asm__ ("fiebra %0, 1, %1, 4" : "=f"(x) : "f"(x));
-	return x;
-}
-
-#else
-
-#include "../roundf.c"
-
-#endif
diff --git a/src/libs/musl.zig b/src/libs/musl.zig
index 97f1d4e2f0..b8f7068e5c 100644
--- a/src/libs/musl.zig
+++ b/src/libs/musl.zig
@@ -818,7 +818,6 @@ const src_files = [_][]const u8{
     "musl/src/math/aarch64/nearbyintf.c",
     "musl/src/math/aarch64/rint.c",
     "musl/src/math/aarch64/rintf.c",
-    "musl/src/math/aarch64/roundf.c",
     "musl/src/math/acosf.c",
     "musl/src/math/acosh.c",
     "musl/src/math/acoshf.c",
@@ -996,7 +995,6 @@ const src_files = [_][]const u8{
     "musl/src/math/powerpc64/lrintf.c",
     "musl/src/math/powerpc64/lround.c",
     "musl/src/math/powerpc64/lroundf.c",
-    "musl/src/math/powerpc64/roundf.c",
     "musl/src/math/powerpc/fma.c",
     "musl/src/math/powerpc/fmaf.c",
     "musl/src/math/powf.c",
@@ -1019,7 +1017,6 @@ const src_files = [_][]const u8{
     "musl/src/math/riscv32/fmaf.c",
     "musl/src/math/riscv64/fma.c",
     "musl/src/math/riscv64/fmaf.c",
-    "musl/src/math/roundf.c",
     "musl/src/math/s390x/fma.c",
     "musl/src/math/s390x/fmaf.c",
     "musl/src/math/s390x/nearbyint.c",
@@ -1028,7 +1025,6 @@ const src_files = [_][]const u8{
     "musl/src/math/s390x/rint.c",
     "musl/src/math/s390x/rintf.c",
     "musl/src/math/s390x/rintl.c",
-    "musl/src/math/s390x/roundf.c",
     "musl/src/math/scalb.c",
     "musl/src/math/scalbf.c",
     "musl/src/math/scalbln.c",
diff --git a/src/libs/wasi_libc.zig b/src/libs/wasi_libc.zig
index 743812e93c..239f8b4777 100644
--- a/src/libs/wasi_libc.zig
+++ b/src/libs/wasi_libc.zig
@@ -808,7 +808,6 @@ const libc_top_half_src_files = [_][]const u8{
     "musl/src/math/remquof.c",
     "musl/src/math/remquol.c",
     "musl/src/math/rintl.c",
-    "musl/src/math/roundf.c",
     "musl/src/math/scalb.c",
     "musl/src/math/scalbf.c",
     "musl/src/math/scalbln.c",
diff --git a/test/libc.zig b/test/libc.zig
index cf61d1ba4d..57581ca32e 100644
--- a/test/libc.zig
+++ b/test/libc.zig
@@ -297,7 +297,7 @@ pub fn addCases(cases: *tests.LibcContext) void {
     cases.addLibcTestCase("math/rintf.c", true, .{});
     // cases.addLibcTestCase("math/rintl.c", true, .{});
     cases.addLibcTestCase("math/round.c", true, .{});
-    // cases.addLibcTestCase("math/roundf.c", true, .{});
+    cases.addLibcTestCase("math/roundf.c", true, .{});
     cases.addLibcTestCase("math/roundl.c", true, .{});
     cases.addLibcTestCase("math/scalb.c", true, .{});
     cases.addLibcTestCase("math/scalbf.c", true, .{});