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0453fd2de1
This reverts commit r243198 and 243304. Turns out this wasn't the correct fix for this problem. It works only within FastISel, but fails when the truncate is selected by SDAG. llvm-svn: 244287
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; RUN: llc %s -o - -O0 -verify-machineinstrs -fast-isel=true | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios8.0.0"
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; This test was trying to fold the sext %tmp142 in to the address arithmetic in %sunkaddr1.
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; This was incorrect as %.mux isn't available in the last bb.
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; CHECK: sxtw [[REG:x[0-9]+]]
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; CHECK: strh wzr, {{\[}}[[REG]], {{.*}}, lsl #1]
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; Function Attrs: nounwind optsize ssp
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define void @EdgeLoop(i32 %dir, i32 %edge, i32 %width, i16* %tmp89, i32 %tmp136, i16 %tmp144) #0 {
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bb:
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%tmp2 = icmp eq i32 %dir, 0
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%.mux = select i1 %tmp2, i32 %width, i32 1
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%tmp142 = sext i32 %.mux to i64
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%tmp151 = shl nsw i64 %tmp142, 1
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%tmp153 = getelementptr inbounds i16, i16* %tmp89, i64 %tmp151
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%tmp154 = load i16, i16* %tmp153, align 2
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%tmp155 = zext i16 %tmp154 to i32
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br i1 %tmp2, label %bb225, label %bb212
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bb212: ; preds = %bb
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store i16 %tmp144, i16* %tmp89, align 2
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ret void
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bb225: ; preds = %bb
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%tmp248 = trunc i32 %tmp155 to i16
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store i16 %tmp248, i16* %tmp89, align 2
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%sunkaddr = ptrtoint i16* %tmp89 to i64
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%sunkaddr1 = mul i64 %tmp142, 2
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%sunkaddr2 = add i64 %sunkaddr, %sunkaddr1
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%sunkaddr3 = inttoptr i64 %sunkaddr2 to i16*
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store i16 0, i16* %sunkaddr3, align 2
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ret void
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}
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attributes #0 = { nounwind optsize ssp }
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