From 3312ab3b34bfcb63aac21c8aef992f373850fe45 Mon Sep 17 00:00:00 2001
From: Andrew Stubbs <ams@codesourcery.com>
Date: Fri, 27 Oct 2023 11:37:07 +0100
Subject: amdgcn: silence warnings

The operands really should be VOIDmode, so the warnings are false.

gcc/ChangeLog:

	* config/gcn/gcn-valu.md
	(vec_extract<V_1REG:mode><V_1REG_ALT:mode>_nop): Mention "operands" in
	condition to silence the warnings.
	(vec_extract<V_2REG:mode><V_2REG_ALT:mode>_nop): Likewise.
	* config/gcn/gcn.md (*movti_insn): Likewise.
---
 gcc/ChangeLog.omp          | 11 +++++++++++
 gcc/config/gcn/gcn-valu.md |  6 ++++--
 gcc/config/gcn/gcn.md      |  2 +-
 3 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'gcc')

diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index 43e69b7..c0a30ee 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -3,6 +3,17 @@
 	Backport from mainline:
 	Andrew Stubbs  <ams@codesourcery.com>
 
+	* config/gcn/gcn-valu.md
+	(vec_extract<V_1REG:mode><V_1REG_ALT:mode>_nop): Mention "operands" in
+	condition to silence the warnings.
+	(vec_extract<V_2REG:mode><V_2REG_ALT:mode>_nop): Likewise.
+	* config/gcn/gcn.md (*movti_insn): Likewise.
+
+2023-11-10  Andrew Stubbs  <ams@codesourcery.com>
+
+	Backport from mainline:
+	Andrew Stubbs  <ams@codesourcery.com>
+
 	* config/gcn/gcn-valu.md (*mov<mode>): Convert to compact syntax.
 	(mov<mode>_exec): Likewise.
 	(mov<mode>_sgprbase): Likewise.
diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md
index 790bada..2e8eea4 100644
--- a/gcc/config/gcn/gcn-valu.md
+++ b/gcc/config/gcn/gcn-valu.md
@@ -948,7 +948,8 @@
 	  (match_operand:V_1REG 1 "register_operand"   " 0,v")
 	  (match_operand 2 "ascending_zero_int_parallel" "")))]
   "MODE_VF (<V_1REG_ALT:MODE>mode) < MODE_VF (<V_1REG:MODE>mode)
-   && <V_1REG_ALT:SCALAR_MODE>mode == <V_1REG:SCALAR_MODE>mode"
+   && <V_1REG_ALT:SCALAR_MODE>mode == <V_1REG:SCALAR_MODE>mode
+   /* This comment silences a warning for operands[2]. */"
   "@
   ; in-place extract %0
   v_mov_b32\t%L0, %L1"
@@ -961,7 +962,8 @@
 	  (match_operand:V_2REG 1 "register_operand"   " 0,v")
 	  (match_operand 2 "ascending_zero_int_parallel" "")))]
   "MODE_VF (<V_2REG_ALT:MODE>mode) < MODE_VF (<V_2REG:MODE>mode)
-   && <V_2REG_ALT:SCALAR_MODE>mode == <V_2REG:SCALAR_MODE>mode"
+   && <V_2REG_ALT:SCALAR_MODE>mode == <V_2REG:SCALAR_MODE>mode
+   /* This comment silences a warning for operands[2]. */"
   "@
   ; in-place extract %0
   v_mov_b32\t%L0, %L1\;v_mov_b32\t%H0, %H1"
diff --git a/gcc/config/gcn/gcn.md b/gcc/config/gcn/gcn.md
index bffbd3e..f674d36 100644
--- a/gcc/config/gcn/gcn.md
+++ b/gcc/config/gcn/gcn.md
@@ -710,7 +710,7 @@
 
 (define_insn "prologue_use"
   [(unspec_volatile [(match_operand 0 "register_operand")] UNSPECV_PROLOGUE_USE)]
-  ""
+  "1 /* This comment silences a warning for operands[2]. */"
   ""
   [(set_attr "length" "0")])
 
-- 
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