Files
clang-p2996/llvm/test/CodeGen/RISCV/riscv-func-target-feature.ll
Philip Reames e817966718 [RISCV] Collapse fast unaligned access into a single feature [nfc-ish] (#73971)
When we'd originally added unaligned-scalar-mem and
unaligned-vector-mem, they were separated into two parts under the
theory that some processor might implement one, but not the other. At
the moment, we don't have evidence of such a processor. The C/C++ level
interface, and the clang driver command lines have settled on a single
unaligned flag which indicates both scalar and vector support unaligned.
Given that, let's remove the test matrix complexity for a set of
configurations which don't appear useful.

Given these are internal feature names, I don't think we need to provide
any forward compatibility. Anyone disagree?

Note: The immediate trigger for this patch was finding another case
where the unaligned-vector-mem wasn't being properly serialized to IR
from clang which resulted in problems reproducing assembly from clang's
-emit-llvm feature. Instead of fixing this, I decided getting rid of the
complexity was the better approach.
2023-12-01 11:00:59 -08:00

45 lines
1.0 KiB
LLVM

; RUN: llc -mtriple=riscv64 -mcpu=sifive-u74 -verify-machineinstrs < %s | FileCheck %s
; CHECK: .option push
; CHECK-NEXT: .option arch, +v, +zve32f, +zve32x, +zve64d, +zve64f, +zve64x, +zvl128b, +zvl32b, +zvl64b
define void @test1() "target-features"="+a,+d,+f,+m,+c,+v,+zifencei,+zve32f,+zve32x,+zve64d,+zve64f,+zve64x,+zvl128b,+zvl32b,+zvl64b" {
; CHECK-LABEL: test1
; CHECK: .option pop
entry:
ret void
}
; CHECK: .option push
; CHECK-NEXT: .option arch, +zihintntl
define void @test2() "target-features"="+a,+d,+f,+m,+zihintntl,+zifencei" {
; CHECK-LABEL: test2
; CHECK: .option pop
entry:
ret void
}
; CHECK: .option push
; CHECK-NEXT: .option arch, -a, -d, -f, -m
define void @test3() "target-features"="-a,-d,-f,-m" {
; CHECK-LABEL: test3
; CHECK: .option pop
entry:
ret void
}
; CHECK-NOT: .option push
define void @test4() {
; CHECK-LABEL: test4
; CHECK-NOT: .option pop
entry:
ret void
}
; CHECK-NOT: .option push
define void @test5() "target-features"="+fast-unaligned-access" {
; CHECK-LABEL: test5
; CHECK-NOT: .option pop
entry:
ret void
}