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TheRock/compiler/amd-llvm/llvm/test/Transforms/IndVarSimplify/X86/widen-nsw.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

28 lines
1.0 KiB
LLVM

; RUN: opt < %s -passes=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-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx"
; CHECK-LABEL: @test1
; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
define i32 @test1(ptr %a) {
entry:
br label %for.cond
for.cond: ; preds = %for.body, %entry
%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%cmp = icmp slt i32 %i.0, 1000
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds i32, ptr %a, i64 %idxprom
%0 = load i32, ptr %arrayidx, align 4
%add = add nsw i32 %sum.0, %0
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i32 %sum.0
}