156 lines
4.3 KiB
LLVM
156 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
|
|
; Test 128-bit shift left in vector registers on z13
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
|
|
|
|
; Shift left immediate (general case).
|
|
define i128 @f1(i128 %a) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepib %v1, 100
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%res = shl i128 %a, 100
|
|
ret i128 %res
|
|
}
|
|
|
|
; Shift left immediate (< 8 bits).
|
|
define i128 @f2(i128 %a) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepib %v1, 7
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%res = shl i128 %a, 7
|
|
ret i128 %res
|
|
}
|
|
|
|
; Shift left immediate (full bytes).
|
|
define i128 @f3(i128 %a) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepib %v1, 32
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%res = shl i128 %a, 32
|
|
ret i128 %res
|
|
}
|
|
|
|
; Shift left variable.
|
|
define i128 @f4(i128 %a, i128 %sh) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: l %r0, 12(%r4)
|
|
; CHECK-NEXT: vlvgp %v1, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v1, %v1, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%res = shl i128 %a, %sh
|
|
ret i128 %res
|
|
}
|
|
|
|
; Test removal of AND mask with only bottom 7 bits set.
|
|
define i128 @f5(i128 %a, i128 %sh) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: l %r0, 12(%r4)
|
|
; CHECK-NEXT: vlvgp %v1, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v1, %v1, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%and = and i128 %sh, 127
|
|
%shift = shl i128 %a, %and
|
|
ret i128 %shift
|
|
}
|
|
|
|
; Test removal of AND mask including but not limited to bottom 7 bits.
|
|
define i128 @f6(i128 %a, i128 %sh) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: l %r0, 12(%r4)
|
|
; CHECK-NEXT: vlvgp %v1, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v1, %v1, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%and = and i128 %sh, 511
|
|
%shift = shl i128 %a, %and
|
|
ret i128 %shift
|
|
}
|
|
|
|
; Test that AND is not removed when some lower 7 bits are not set.
|
|
define i128 @f7(i128 %a, i128 %sh) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: lhi %r0, 63
|
|
; CHECK-NEXT: n %r0, 12(%r4)
|
|
; CHECK-NEXT: vlvgp %v1, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v1, %v1, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%and = and i128 %sh, 63
|
|
%shift = shl i128 %a, %and
|
|
ret i128 %shift
|
|
}
|
|
|
|
; Test that AND with two register operands is not affected.
|
|
define i128 @f8(i128 %a, i128 %b, i128 %sh) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: vl %v1, 0(%r4), 3
|
|
; CHECK-NEXT: vl %v2, 0(%r5), 3
|
|
; CHECK-NEXT: vn %v1, %v2, %v1
|
|
; CHECK-NEXT: vlgvf %r0, %v1, 3
|
|
; CHECK-NEXT: vlvgp %v1, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v1, %v1, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v1
|
|
; CHECK-NEXT: vsl %v0, %v0, %v1
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%and = and i128 %sh, %b
|
|
%shift = shl i128 %a, %and
|
|
ret i128 %shift
|
|
}
|
|
|
|
; Test that AND is not entirely removed if the result is reused.
|
|
define i128 @f9(i128 %a, i128 %sh) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: larl %r1, .LCPI8_0
|
|
; CHECK-NEXT: vl %v1, 0(%r4), 3
|
|
; CHECK-NEXT: vl %v2, 0(%r1), 3
|
|
; CHECK-NEXT: vn %v1, %v1, %v2
|
|
; CHECK-NEXT: vlgvf %r0, %v1, 3
|
|
; CHECK-NEXT: vlvgp %v2, %r0, %r0
|
|
; CHECK-NEXT: vl %v0, 0(%r3), 3
|
|
; CHECK-NEXT: vrepb %v2, %v2, 15
|
|
; CHECK-NEXT: vslb %v0, %v0, %v2
|
|
; CHECK-NEXT: vsl %v0, %v0, %v2
|
|
; CHECK-NEXT: vaq %v0, %v1, %v0
|
|
; CHECK-NEXT: vst %v0, 0(%r2), 3
|
|
; CHECK-NEXT: br %r14
|
|
%and = and i128 %sh, 127
|
|
%shift = shl i128 %a, %and
|
|
%reuse = add i128 %and, %shift
|
|
ret i128 %reuse
|
|
}
|
|
|