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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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45
external/llvm/test/Transforms/Reassociate/wrap-flags.ll vendored
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@ -1,45 +0,0 @@
; RUN: opt < %s -reassociate -dce -S | FileCheck %s
; PR12985
; Verify the nsw flags are preserved when converting shl to mul.
; CHECK-LABEL: @shl_to_mul_nsw(
; CHECK: %mul = mul i32 %i, -2147483648
; CHECK: add i32 %mul, 1
define i32 @shl_to_mul_nsw(i32 %i) {
entry:
%mul = shl nsw i32 %i, 31
%mul2 = add i32 %mul, 1
ret i32 %mul2
}
; CHECK-LABEL: @shl_to_mul_nuw(
; CHECK: %mul = mul nuw i32 %i, 4
; CHECK: add i32 %mul, 1
define i32 @shl_to_mul_nuw(i32 %i) {
entry:
%mul = shl nuw i32 %i, 2
%mul2 = add i32 %mul, 1
ret i32 %mul2
}
; CHECK-LABEL: @shl_to_mul_nuw_nsw(
; CHECK: %mul = mul nuw nsw i32 %i, 4
; CHECK: add i32 %mul, 1
define i32 @shl_to_mul_nuw_nsw(i32 %i) {
entry:
%mul = shl nuw nsw i32 %i, 2
%mul2 = add i32 %mul, 1
ret i32 %mul2
}
; CHECK-LABEL: @pr23926(
; CHECK: %[[X1_neg:.*]] = sub i2 0, %X1
; CHECK-NEXT: %[[sub_one:.*]] = add i2 %[[X1_neg]], -1
; CHECK-NEXT: %[[add:.*]] = add i2 %[[sub_one]], %X2
; CHECK-NEXT: ret i2 %[[add]]
define i2 @pr23926(i2 %X1, i2 %X2) {
%add = add nuw i2 %X1, 1
%sub = sub nuw nsw i2 %X2, %add
ret i2 %sub
}