uweigand added a comment.
The newly added test cases in ffp-model.c fail on SystemZ, making CI red:
https://lab.llvm.org/buildbot/#/builders/94/builds/16280
The root cause seems to be that by default, the SystemZ back-end targets a
machine without SIMD support, and therefore vector return types are passed via
implicit reference according to the ABI:
/home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/clang/test/CodeGen/ffp-model.c:121:12:
error: CHECK: expected string not found in input
// CHECK: define{{.*}} <4 x float> @my_m22_muladd
^
<stdin>:62:28: note: scanning from here
%4 = fadd fast <2 x float> %2, %3
^
<stdin>:67:1: note: possible intended match here
define dso_local void @my_m22_muladd(ptr noalias sret([4 x float]) align 4
%agg.result, ptr noundef %0, float noundef nofpclass(nan inf) %y, ptr noundef
%1) #0 {
^
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D158883/new/
https://reviews.llvm.org/D158883
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