36 lines
1.3 KiB
Diff
36 lines
1.3 KiB
Diff
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From a0559370c5b6ca2a080b673da7198ae366aa34bd Mon Sep 17 00:00:00 2001
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Date: Fri, 19 Apr 2019 17:34:30 +0000
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Subject: [PATCH] 8221658: aarch64: add necessary predicate for ubfx patterns
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Bug url: https://bugs.openjdk.java.net/browse/JDK-8221658
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---
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hotspot/src/cpu/aarch64/vm/aarch64.ad | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/hotspot/src/cpu/aarch64/vm/aarch64.ad b/hotspot/src/cpu/aarch64/vm/aarch64.ad
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index d779915db..a82629edd 100644
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--- a/hotspot/src/cpu/aarch64/vm/aarch64.ad
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+++ b/hotspot/src/cpu/aarch64/vm/aarch64.ad
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@@ -10777,7 +10777,7 @@ instruct ubfxwI(iRegINoSp dst, iRegIorL2I src, immI rshift, immI_bitmask mask)
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long mask = $mask$$constant;
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int width = exact_log2(mask+1);
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__ ubfxw(as_Register($dst$$reg),
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- as_Register($src$$reg), rshift, width);
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+ as_Register($src$$reg), $rshift$$constant & 31, width);
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%}
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ins_pipe(ialu_reg_shift);
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%}
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@@ -10792,7 +10792,7 @@ instruct ubfxL(iRegLNoSp dst, iRegL src, immI rshift, immL_bitmask mask)
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long mask = $mask$$constant;
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int width = exact_log2(mask+1);
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__ ubfx(as_Register($dst$$reg),
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- as_Register($src$$reg), rshift, width);
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+ as_Register($src$$reg), $rshift$$constant & 63, width);
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%}
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ins_pipe(ialu_reg_shift);
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%}
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--
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2.19.0
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