================
@@ -3,6 +3,18 @@
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
+; Test f16.
+declare half @llvm.fabs.f16(half %f)
+define half @f0(half %f) {
+; CHECK-LABEL: f0:
+; CHECK: brasl %r14, __extendhfsf2@PLT
+; CHECK-NEXT: lpdfr %f0, %f0
+; CHECK-NEXT: brasl %r14, __truncsfhf2@PLT
+; CHECK: br %r14
----------------
tgross35 wrote:
Similarly `fabs `could be `a & !SIGN_MASK`. It looks like aarch64 uses this,
x86 still seems to extend then truncate for whatever reason.
https://github.com/llvm/llvm-project/pull/109164
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