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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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56
external/llvm/test/Transforms/IndVarSimplify/iv-fold.ll vendored
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@ -1,56 +0,0 @@
; RUN: opt < %s -indvars -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n32:64"
; Indvars should be able to fold IV increments into shr when low bits are zero.
;
; CHECK-LABEL: @foldIncShr(
; CHECK: shr.1 = lshr i32 %0, 5
define i32 @foldIncShr(i32* %bitmap, i32 %bit_addr, i32 %nbits) nounwind {
entry:
br label %while.body
while.body:
%0 = phi i32 [ 0, %entry ], [ %inc.2, %while.body ]
%shr = lshr i32 %0, 5
%arrayidx = getelementptr inbounds i32, i32* %bitmap, i32 %shr
%tmp6 = load i32, i32* %arrayidx, align 4
%inc.1 = add i32 %0, 1
%shr.1 = lshr i32 %inc.1, 5
%arrayidx.1 = getelementptr inbounds i32, i32* %bitmap, i32 %shr.1
%tmp6.1 = load i32, i32* %arrayidx.1, align 4
%inc.2 = add i32 %inc.1, 1
%exitcond.3 = icmp eq i32 %inc.2, 128
br i1 %exitcond.3, label %while.end, label %while.body
while.end:
%r = add i32 %tmp6, %tmp6.1
ret i32 %r
}
; Invdars should not fold an increment into shr unless 2^shiftBits is
; a multiple of the recurrence step.
;
; CHECK-LABEL: @noFoldIncShr(
; CHECK: shr.1 = lshr i32 %inc.1, 5
define i32 @noFoldIncShr(i32* %bitmap, i32 %bit_addr, i32 %nbits) nounwind {
entry:
br label %while.body
while.body:
%0 = phi i32 [ 0, %entry ], [ %inc.3, %while.body ]
%shr = lshr i32 %0, 5
%arrayidx = getelementptr inbounds i32, i32* %bitmap, i32 %shr
%tmp6 = load i32, i32* %arrayidx, align 4
%inc.1 = add i32 %0, 1
%shr.1 = lshr i32 %inc.1, 5
%arrayidx.1 = getelementptr inbounds i32, i32* %bitmap, i32 %shr.1
%tmp6.1 = load i32, i32* %arrayidx.1, align 4
%inc.3 = add i32 %inc.1, 2
%exitcond.3 = icmp eq i32 %inc.3, 96
br i1 %exitcond.3, label %while.end, label %while.body
while.end:
%r = add i32 %tmp6, %tmp6.1
ret i32 %r
}