diff --git a/runtime/src/iree/builtins/musl/Makefile_wasm32.iree b/runtime/src/iree/builtins/musl/Makefile_wasm32.iree
index 83a108904b98..869ed875d7a1 100644
--- a/runtime/src/iree/builtins/musl/Makefile_wasm32.iree
+++ b/runtime/src/iree/builtins/musl/Makefile_wasm32.iree
@@ -13,11 +13,15 @@ IREE_BASE_SRCS = $(addprefix $(srcdir)/, \
 	src/math/floorf.c \
 	src/math/fmaf.c \
 	src/math/fmodf.c \
+	src/math/frexpf.c \
+	src/math/ldexpf.c \
 	src/math/powf.c \
 	src/math/expf.c \
 	src/math/powf_data.c \
 	src/math/exp2f_data.c \
+	src/math/rintf.c \
 	src/math/roundf.c \
+	src/math/scalbnf.c \
 	src/math/__math_invalidf.c \
 	src/math/__math_oflowf.c \
 	src/math/__math_uflowf.c \
diff --git a/runtime/src/iree/builtins/musl/Makefile_wasm64.iree b/runtime/src/iree/builtins/musl/Makefile_wasm64.iree
index 5790beb6bdc1..486d9ded1914 100644
--- a/runtime/src/iree/builtins/musl/Makefile_wasm64.iree
+++ b/runtime/src/iree/builtins/musl/Makefile_wasm64.iree
@@ -13,11 +13,15 @@ IREE_BASE_SRCS = $(addprefix $(srcdir)/, \
 	src/math/floorf.c \
 	src/math/fmaf.c \
 	src/math/fmodf.c \
+	src/math/frexpf.c \
+	src/math/ldexpf.c \
 	src/math/powf.c \
 	src/math/expf.c \
 	src/math/powf_data.c \
-	src/math/roundf.c \
 	src/math/exp2f_data.c \
+	src/math/rintf.c \
+	src/math/roundf.c \
+	src/math/scalbnf.c \
 	src/math/__math_invalidf.c \
 	src/math/__math_oflowf.c \
 	src/math/__math_uflowf.c \
diff --git a/runtime/src/iree/builtins/musl/bin/build.sh b/runtime/src/iree/builtins/musl/bin/build.sh
index af982d0906c3..23782aa65901 100755
--- a/runtime/src/iree/builtins/musl/bin/build.sh
+++ b/runtime/src/iree/builtins/musl/bin/build.sh
@@ -51,7 +51,7 @@ function make_arch_bc {
   do
     # Run full LLVM optimizations.
     # TODO(benvanik): defer this? Some of these opts may not be portable/safe.
-    ${LLVM_OPT?} ${file} -O3 -S -opaque-pointers=0 -o ${file}.opt.ll
+    ${LLVM_OPT?} ${file} -O3 -S -o ${file}.opt.ll
 
     # Clang adds a bunch of bad attributes and host-specific information that we
     # don't want (so we get at least somewhat deterministic builds).
@@ -64,13 +64,13 @@ function make_arch_bc {
     # Generate a binary bitcode file embedded into the compiler binary.
     # NOTE: we do this from stdin so that the filename on the user's system is not
     # embedded in the bitcode file (making it non-deterministic).
-    cat ${file}.opt.ll | ${LLVM_AS?} -opaque-pointers=0 -o=${file}.opt.ll.bc
+    cat ${file}.opt.ll | ${LLVM_AS?} -o ${file}.opt.ll.bc
     rm ${file}.opt.ll
   done
   rm ${ALL_LL_FILES}
 
   ALL_BC_FILES=`ls *.ll.bc`
-  ${LLVM_LINK?} -opaque-pointers=0 ${ALL_BC_FILES} -o ${FILE_BASENAME}.bc
+  ${LLVM_LINK?} ${ALL_BC_FILES} -o ${FILE_BASENAME}.bc
   rm ${ALL_BC_FILES}
 }
 
diff --git a/runtime/src/iree/builtins/musl/bin/libmusl_wasm32_generic.bc b/runtime/src/iree/builtins/musl/bin/libmusl_wasm32_generic.bc
index eed3ffe2abf1..8c81f49b073b 100644
Binary files a/runtime/src/iree/builtins/musl/bin/libmusl_wasm32_generic.bc and b/runtime/src/iree/builtins/musl/bin/libmusl_wasm32_generic.bc differ
diff --git a/runtime/src/iree/builtins/musl/bin/libmusl_wasm64_generic.bc b/runtime/src/iree/builtins/musl/bin/libmusl_wasm64_generic.bc
index 233a729ce425..0767285c835b 100644
Binary files a/runtime/src/iree/builtins/musl/bin/libmusl_wasm64_generic.bc and b/runtime/src/iree/builtins/musl/bin/libmusl_wasm64_generic.bc differ