13ffde316a
Remove compares after replacing all uses. Cleaning dead compares can enable additional simplifications when adjusting the position of the pass slightly. In particular, it seems like the additional dead instructions may prevent SimplifyCFG performing some folds. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D158760
56 lines
2.3 KiB
LLVM
56 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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; Should not crash when GEP pointer operand is a vector.
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define <2 x i1> @test.vectorgep(<2 x ptr> %vec) {
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; CHECK-LABEL: @test.vectorgep(
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, <2 x ptr> [[VEC:%.*]], i64 0
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; CHECK-NEXT: [[COND:%.*]] = icmp ule <2 x ptr> [[GEP]], zeroinitializer
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; CHECK-NEXT: ret <2 x i1> [[COND]]
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;
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%gep = getelementptr inbounds i32, <2 x ptr> %vec, i64 0
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%cond = icmp ule <2 x ptr> %gep, zeroinitializer
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ret <2 x i1> %cond
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}
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define <2 x i1> @test.vectorgep.ult.true(<2 x ptr> %vec) {
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; CHECK-LABEL: @test.vectorgep.ult.true(
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i32, <2 x ptr> [[VEC:%.*]], i64 1
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; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true>
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;
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%gep.1 = getelementptr inbounds i32, <2 x ptr> %vec, i64 1
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%t.1 = icmp ult <2 x ptr> %vec, %gep.1
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ret <2 x i1> %t.1
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}
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define <2 x i1> @test.vectorgep.ult.false(<2 x ptr> %vec) {
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; CHECK-LABEL: @test.vectorgep.ult.false(
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i32, <2 x ptr> [[VEC:%.*]], i64 1
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; CHECK-NEXT: ret <2 x i1> zeroinitializer
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;
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%gep.1 = getelementptr inbounds i32, <2 x ptr> %vec, i64 1
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%t.1 = icmp ult <2 x ptr> %gep.1, %vec
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ret <2 x i1> %t.1
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}
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define <vscale x 2 x i1> @test.scalable.vectorgep.ult.true(<vscale x 2 x ptr> %vec) {
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; CHECK-LABEL: @test.scalable.vectorgep.ult.true(
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i32, <vscale x 2 x ptr> [[VEC:%.*]], i64 1
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; CHECK-NEXT: ret <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer)
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;
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%gep.1 = getelementptr inbounds i32, <vscale x 2 x ptr> %vec, i64 1
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%t.1 = icmp ult <vscale x 2 x ptr> %vec, %gep.1
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ret <vscale x 2 x i1> %t.1
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}
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define <vscale x 2 x i1> @test.scalable.vectorgep.ult.false(<vscale x 2 x ptr> %vec) {
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; CHECK-LABEL: @test.scalable.vectorgep.ult.false(
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; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i32, <vscale x 2 x ptr> [[VEC:%.*]], i64 1
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; CHECK-NEXT: ret <vscale x 2 x i1> zeroinitializer
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;
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%gep.1 = getelementptr inbounds i32, <vscale x 2 x ptr> %vec, i64 1
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%t.1 = icmp ult <vscale x 2 x ptr> %gep.1, %vec
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ret <vscale x 2 x i1> %t.1
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}
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