derek.holloway
7502bf64a4
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114 lines
3.8 KiB
LLVM
114 lines
3.8 KiB
LLVM
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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; Test that no vperm of the vector compare is needed for the extracts.
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define void @fun() {
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; CHECK-LABEL: fun:
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; CHECK: # %bb.0: # %bb
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; CHECK-NEXT: vlrepf %v0, 0(%r1)
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; CHECK-NEXT: vgbm %v1, 0
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; CHECK-NEXT: vceqb %v0, %v0, %v1
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; CHECK-NEXT: vuphb %v0, %v0
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; CHECK-NEXT: vuphh %v0, %v0
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; CHECK-NEXT: vlgvf %r0, %v0, 0
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; CHECK-NEXT: tmll %r0, 1
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; CHECK-NEXT: je .LBB0_2
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; CHECK-NEXT: # %bb.1: # %bb1
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; CHECK-NEXT: .LBB0_2: # %bb2
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; CHECK-NEXT: vlgvf %r0, %v0, 1
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; CHECK-NEXT: tmll %r0, 1
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; CHECK-NEXT: je .LBB0_4
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; CHECK-NEXT: # %bb.3: # %bb3
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; CHECK-NEXT: .LBB0_4: # %bb4
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bb:
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%tmp = load <4 x i8>, ptr undef
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%tmp1 = icmp eq <4 x i8> zeroinitializer, %tmp
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%tmp2 = extractelement <4 x i1> %tmp1, i32 0
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br i1 %tmp2, label %bb1, label %bb2
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bb1:
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unreachable
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bb2:
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%tmp3 = extractelement <4 x i1> %tmp1, i32 1
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br i1 %tmp3, label %bb3, label %bb4
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bb3:
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unreachable
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bb4:
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unreachable
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}
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; Test that a zero index in the permute vector is used instead of VGBM, with
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; a zero index into the other source operand.
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define <4 x i8> @fun1(<2 x i8> %arg) {
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; CHECK-LABEL:.LCPI1_0:
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; CHECK-NEXT: .byte 1 # 0x1
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; CHECK-NEXT: .byte 18 # 0x12
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; CHECK-NEXT: .byte 0 # 0x0
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; CHECK-NEXT: .byte 18 # 0x12
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .text
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; CHECK-NEXT: .globl fun1
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; CHECK-NEXT: .p2align 1
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; CHECK-NEXT: .prefalign 4, .Lfunc_end1, nop
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; CHECK-NEXT: .type fun1,@function
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; CHECK-NEXT: fun1: # @fun1
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; CHECK-NEXT: .cfi_startproc
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; CHECK-NEXT: # %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI1_0
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; CHECK-NEXT: vl %v0, 0(%r1), 3
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; CHECK-NEXT: vperm %v24, %v24, %v0, %v0
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; CHECK-NEXT: br %r14
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%res = shufflevector <2 x i8> %arg, <2 x i8> zeroinitializer,
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<4 x i32> <i32 1, i32 2, i32 0, i32 3>
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ret <4 x i8> %res
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}
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; Same, but with the first byte indexing into an element of the zero vector.
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define <4 x i8> @fun2(<2 x i8> %arg) {
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; CHECK-LABEL:.LCPI2_0:
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; CHECK-NEXT: .byte 0 # 0x0
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; CHECK-NEXT: .byte 17 # 0x11
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; CHECK-NEXT: .byte 17 # 0x11
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; CHECK-NEXT: .byte 0 # 0x0
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .space 1
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; CHECK-NEXT: .text
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; CHECK-NEXT: .globl fun2
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; CHECK-NEXT: .p2align 1
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; CHECK-NEXT: .prefalign 4, .Lfunc_end2, nop
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; CHECK-NEXT: .type fun2,@function
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; CHECK-NEXT:fun2: # @fun2
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; CHECK-NEXT: .cfi_startproc
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; CHECK-NEXT:# %bb.0:
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; CHECK-NEXT: larl %r1, .LCPI2_0
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; CHECK-NEXT: vl %v0, 0(%r1), 3
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; CHECK-NEXT: vperm %v24, %v0, %v24, %v0
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; CHECK-NEXT: br %r14
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%res = shufflevector <2 x i8> %arg, <2 x i8> zeroinitializer,
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<4 x i32> <i32 3, i32 1, i32 1, i32 2>
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ret <4 x i8> %res
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}
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