059722da5e
This reverts commit 9cc8442a2b438962883bbbfd8ff62ad4b1a2b95d. This reverts commit 859c871184bdfdebb47b5c7ec5e59348e0534e0b. A performance regression was reported on the original review. There appears to have been an unexpected interaction here. Reverting during investigation.
32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -start-after codegenprepare -mtriple=riscv64 -mattr=-v -o - %s | FileCheck --check-prefix=CHECK-NOV %s
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; RUN: llc -start-after codegenprepare -mtriple=riscv64 -mattr=+v -o - %s | FileCheck --check-prefix=CHECK-V %s
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; Reproducer for https://github.com/llvm/llvm-project/issues/55168.
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; We should always return 1 (and not -1).
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define i32 @test(i32 %call.i) {
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; CHECK-NOV-LABEL: test:
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; CHECK-NOV: # %bb.0:
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; CHECK-NOV-NEXT: li a0, 1
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; CHECK-NOV-NEXT: ret
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;
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; CHECK-V-LABEL: test:
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; CHECK-V: # %bb.0:
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; CHECK-V-NEXT: vsetivli zero, 2, e32, mf2, ta, ma
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; CHECK-V-NEXT: vmv.v.x v8, a0
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; CHECK-V-NEXT: lui a0, 524288
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; CHECK-V-NEXT: vslide1down.vx v8, v8, a0
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; CHECK-V-NEXT: addi a0, a0, 2
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; CHECK-V-NEXT: vmslt.vx v0, v8, a0
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; CHECK-V-NEXT: vmv.v.i v8, 0
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; CHECK-V-NEXT: vmerge.vim v8, v8, 1, v0
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; CHECK-V-NEXT: vslidedown.vi v8, v8, 1
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; CHECK-V-NEXT: vmv.x.s a0, v8
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; CHECK-V-NEXT: ret
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%t2 = insertelement <2 x i32> <i32 poison, i32 -2147483648>, i32 %call.i, i64 0
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%t3 = icmp slt <2 x i32> %t2, <i32 -2147483646, i32 -2147483646>
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%t4 = zext <2 x i1> %t3 to <2 x i32>
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%t6 = extractelement <2 x i32> %t4, i64 1
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ret i32 %t6
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}
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