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llvm-project/llvm/test/CodeGen/Hexagon/zextloadi1.ll

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[Hexagon] Minimize number of repeated constant extenders Each constant extender requires an extra instruction, which adds to the code size and also reduces the number of available slots in an instruction packet. In most cases, the value of a repeated constant extender could be loaded into a register, and the instructions using the extender could be replaced with their counterparts that use that register instead. This patch adds a pass that tries to reduce the number of constant extenders, including extenders which differ only in an immediate offset known at compile time, e.g. @global and @global+12. llvm-svn: 315735
2017-10-14 03:02:59 +08:00
; RUN: llc -march=hexagon -hexagon-cext=0 < %s | FileCheck %s
Hexagon: Add patterns for zero extended loads from i1->i64. llvm-svn: 176689
2013-03-08 22:15:15 +08:00
@i65_l = external global i65
@i65_s = external global i65
@i129_l = external global i129
@i129_s = external global i129
[Hexagon] Optimize addressing modes for load/store Patch by Jyotsna Verma. llvm-svn: 268051
2016-04-29 23:49:13 +08:00
; CHECK-LABEL: i129_ls
; CHECK-DAG: r[[REG0:[0-9:]+]] = memd(##i129_l)
; CHECK-DAG: r[[REG1:[0-9:]+]] = memd(##i129_l+8)
; CHECK-DAG: r[[REG2:[0-9]+]] = memub(##i129_l+16)
; CHECK-DAG: memb(##i129_s+16) = r[[REG2]]
; CHECK-DAG: memd(##i129_s+8) = r[[REG1]]
; CHECK-DAG: memd(##i129_s) = r[[REG0]]
Hexagon: Add patterns for zero extended loads from i1->i64. llvm-svn: 176689
2013-03-08 22:15:15 +08:00
define void @i129_ls() nounwind {
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp = load i129, i129* @i129_l
Hexagon: Add patterns for zero extended loads from i1->i64. llvm-svn: 176689
2013-03-08 22:15:15 +08:00
store i129 %tmp, i129* @i129_s
ret void
}
[Hexagon] Optimize addressing modes for load/store Patch by Jyotsna Verma. llvm-svn: 268051
2016-04-29 23:49:13 +08:00
; CHECK-LABEL: i65_ls
; CHECK-DAG: r[[REG0:[0-9:]+]] = memd(##i65_l)
; CHECK-DAG: r[[REG1:[0-9]+]] = memub(##i65_l+8)
; CHECK-DAG: memd(##i65_s) = r[[REG0]]
; CHECK-DAG: memb(##i65_s+8) = r[[REG1]]
Hexagon: Add patterns for zero extended loads from i1->i64. llvm-svn: 176689
2013-03-08 22:15:15 +08:00
define void @i65_ls() nounwind {
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp = load i65, i65* @i65_l
Hexagon: Add patterns for zero extended loads from i1->i64. llvm-svn: 176689
2013-03-08 22:15:15 +08:00
store i65 %tmp, i65* @i65_s
ret void
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion. This was done with the following sed invocation to catch label lines demarking function boundaries: sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct. llvm-svn: 186258
2013-07-14 04:38:47 +08:00
}