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* [gcc/devel/autopar_devel] WIP amdgcn: use unsigned extend for lshiftrt
@ 2020-08-22 21:17 Giuliano Belinassi
0 siblings, 0 replies; only message in thread
From: Giuliano Belinassi @ 2020-08-22 21:17 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:4f1cae9845f98c3f4405c3a164824093b3ac5096
commit 4f1cae9845f98c3f4405c3a164824093b3ac5096
Author: Andrew Stubbs <ams@codesourcery.com>
Date: Tue Apr 28 20:48:51 2020 +0100
WIP amdgcn: use unsigned extend for lshiftrt
This fixes a wrong-code logic error in a previous patch.
Detected by gcc.c-torture/execute/pr53645-2.c.
2020-05-15 Andrew Stubbs <ams@codesourcery.com>
gcc/
* config/gcn/gcn-valu.md (v<expander><mode>3): Fix unsignedp.
Diff:
---
gcc/ChangeLog | 4 ++++
gcc/config/gcn/gcn-valu.md | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b66cb8a477b..31fd653d55f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2020-05-15 Andrew Stubbs <ams@codesourcery.com>
+
+ * config/gcn/gcn-valu.md (v<expander><mode>3): Fix unsignedp.
+
2020-05-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/95133
diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md
index a43d6b6c6f3..d31fe5063b9 100644
--- a/gcc/config/gcn/gcn-valu.md
+++ b/gcc/config/gcn/gcn-valu.md
@@ -2113,7 +2113,7 @@
""
{
enum {ashift, lshiftrt, ashiftrt};
- bool unsignedp = (<code> == ashift || <code> == ashiftrt);
+ bool unsignedp = (<code> == lshiftrt);
rtx insi1 = gen_reg_rtx (<VnSI>mode);
rtx insi2 = gen_reg_rtx (<VnSI>mode);
rtx outsi = gen_reg_rtx (<VnSI>mode);
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