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TheRock/compiler/amd-llvm/llvm/test/Transforms/IndVarSimplify/2011-09-27-hoistsext.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

29 lines
909 B
LLVM

; RUN: opt < %s -passes=indvars -S | FileCheck %s
; Test indvars' ability to hoist new sext created by WidenIV.
; From ffbench.
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"
define internal double @fourn(ptr %data, i32 %x, i32 %y, i32 %n) nounwind {
; CHECK: entry:
; CHECK: sext
; CHECK: sext
entry:
br label %for.body
; CHECK: for.body:
; CHECK-NOT: sext
; CHECK: br
for.body:
%i2.115 = phi i32 [ 0, %entry ], [ %add249, %for.body ]
%add174 = add nsw i32 %i2.115, %x
%idxprom177 = sext i32 %add174 to i64
%arrayidx179 = getelementptr inbounds double, ptr %data, i64 %idxprom177
%tmp180 = load double, ptr %arrayidx179, align 8
%add249 = add nsw i32 %i2.115, %y
%cmp168 = icmp sgt i32 %add249, %n
br i1 %cmp168, label %exit, label %for.body
exit:
ret double %tmp180
}