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| author | Evgeny Stupachenko <evstupac@gmail.com> | 2017-08-07 19:56:34 +0000 |
|---|---|---|
| committer | Evgeny Stupachenko <evstupac@gmail.com> | 2017-08-07 19:56:34 +0000 |
| commit | c675290680d7be4408142c8d74e37e974eef35f2 (patch) | |
| tree | ce4326f6c794942696ca4fd8f57e580517875014 /llvm/test/CodeGen/X86/loop-strength-reduce4.ll | |
| parent | 428f0fe910454884c6e1119c9e9944f824973e1a (diff) | |
| download | bcm5719-llvm-c675290680d7be4408142c8d74e37e974eef35f2.tar.gz bcm5719-llvm-c675290680d7be4408142c8d74e37e974eef35f2.zip | |
Reapply fix PR23384 (part 3 of 3) r304824 (was reverted in r305720).
The root cause of reverting was fixed - PR33514.
Summary:
The patch makes instruction count the highest priority for
LSR solution for X86 (previously registers had highest priority).
Reviewers: qcolombet
Differential Revision: http://reviews.llvm.org/D30562
From: Evgeny Stupachenko <evstupac@gmail.com>
<evgeny.v.stupachenko@intel.com>
llvm-svn: 310289
Diffstat (limited to 'llvm/test/CodeGen/X86/loop-strength-reduce4.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/loop-strength-reduce4.ll | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/X86/loop-strength-reduce4.ll b/llvm/test/CodeGen/X86/loop-strength-reduce4.ll index 786534b00d3..56f4161147b 100644 --- a/llvm/test/CodeGen/X86/loop-strength-reduce4.ll +++ b/llvm/test/CodeGen/X86/loop-strength-reduce4.ll @@ -4,16 +4,19 @@ ; By starting the IV at -64 instead of 0, a cmp is eliminated, ; as the flags from the add can be used directly. -; STATIC: movl $-64, [[ECX:%e..]] +; STATIC: movl $-64, [[EAX:%e..]] -; STATIC: movl [[EAX:%e..]], _state+76([[ECX]]) -; STATIC: addl $16, [[ECX]] +; STATIC: movl %{{.+}}, _state+76([[EAX]]) +; STATIC: addl $16, [[EAX]] ; STATIC: jne -; In PIC mode the symbol can't be folded, so the change-compare-stride -; trick applies. +; The same for PIC mode. -; PIC: cmpl $64 +; PIC: movl $-64, [[EAX:%e..]] + +; PIC: movl %{{.+}}, 76(%{{.+}},[[EAX]]) +; PIC: addl $16, [[EAX]] +; PIC: jne @state = external global [0 x i32] ; <[0 x i32]*> [#uses=4] @S = external global [0 x i32] ; <[0 x i32]*> [#uses=4] |
