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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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81
external/llvm/test/Transforms/SimplifyCFG/implied-cond.ll vendored
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@ -1,81 +0,0 @@
; RUN: opt %s -S -simplifycfg | FileCheck %s
; Check for when one branch implies the value of a successors conditional and
; it's not simply the same conditional repeated.
define void @test(i32 %length.i, i32 %i) {
; CHECK-LABEL: @test
%iplus1 = add nsw i32 %i, 1
%var29 = icmp slt i32 %iplus1, %length.i
; CHECK: br i1 %var29, label %in_bounds, label %out_of_bounds
br i1 %var29, label %next, label %out_of_bounds
next:
; CHECK-LABEL: in_bounds:
; CHECK-NEXT: ret void
%var30 = icmp slt i32 %i, %length.i
br i1 %var30, label %in_bounds, label %out_of_bounds2
in_bounds:
ret void
out_of_bounds:
call void @foo(i64 0)
unreachable
out_of_bounds2:
call void @foo(i64 1)
unreachable
}
; If the add is not nsw, it's not safe to use the fact about i+1 to imply the
; i condition since it could have overflowed.
define void @test_neg(i32 %length.i, i32 %i) {
; CHECK-LABEL: @test_neg
%iplus1 = add i32 %i, 1
%var29 = icmp slt i32 %iplus1, %length.i
; CHECK: br i1 %var29, label %next, label %out_of_bounds
br i1 %var29, label %next, label %out_of_bounds
next:
%var30 = icmp slt i32 %i, %length.i
; CHECK: br i1 %var30, label %in_bounds, label %out_of_bounds2
br i1 %var30, label %in_bounds, label %out_of_bounds2
in_bounds:
ret void
out_of_bounds:
call void @foo(i64 0)
unreachable
out_of_bounds2:
call void @foo(i64 1)
unreachable
}
define void @test2(i32 %length.i, i32 %i) {
; CHECK-LABEL: @test2
%iplus100 = add nsw i32 %i, 100
%var29 = icmp slt i32 %iplus100, %length.i
; CHECK: br i1 %var29, label %in_bounds, label %out_of_bounds
br i1 %var29, label %next, label %out_of_bounds
next:
%var30 = icmp slt i32 %i, %length.i
br i1 %var30, label %in_bounds, label %out_of_bounds2
in_bounds:
ret void
out_of_bounds:
call void @foo(i64 0)
unreachable
out_of_bounds2:
call void @foo(i64 1)
unreachable
}
declare void @foo(i64)