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3edbda39e8
Return true if the mask is a constant uint of 2 bytes, in which case TMLL is available. Review: Ulrich Weigand
43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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;
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; CGP will duplicate and sink the 'icmp' to the users. Test that it does the
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; same for the 'and' so that tmll:s result and the nilf is eliminated.
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define void @fun(i32 %Arg) {
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; CHECK-LABEL: fun:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: ahi %r2, 1
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; CHECK-NEXT: lhi %r0, 0
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; CHECK-NEXT: cijlh %r0, 0, .LBB0_2
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; CHECK-NEXT: # %bb.1: # %bb1
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; CHECK-NEXT: tmll %r2, 16
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; CHECK-NEXT: lochie %r0, 1
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; CHECK-NEXT: st %r0, 0(%r1)
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; CHECK-NEXT: br %r14
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; CHECK-NEXT: .LBB0_2: # %bb2
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; CHECK-NEXT: tmll %r2, 16
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; CHECK-NEXT: lhi %r0, 16
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; CHECK-NEXT: lochie %r0, 4
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; CHECK-NEXT: st %r0, 0(%r1)
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; CHECK-NEXT: br %r14
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entry:
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%A = add i32 %Arg, 1
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%N = and i32 %A, 16
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%i4 = icmp eq i32 %N, 0
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br i1 undef, label %bb1, label %bb2
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bb1:
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%i9 = zext i1 %i4 to i32
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store i32 %i9, i32* undef
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br label %bb3
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bb2:
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%i13 = select i1 %i4, i32 4, i32 16
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store i32 %i13, i32* undef
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br label %bb3
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bb3:
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ret void
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}
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