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| author | Bob Wilson <bob.wilson@apple.com> | 2010-02-10 22:58:57 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-02-10 22:58:57 +0000 |
| commit | 5e2b05a71e81b28712b77419f68657462494e103 (patch) | |
| tree | 8029ae1969d5fb607781fba7e98b005022475af7 /test/CodeGen/ARM | |
| parent | b8ff934e94637462901ebd1c849aeaf71350dacc (diff) | |
| download | external_llvm-5e2b05a71e81b28712b77419f68657462494e103.zip external_llvm-5e2b05a71e81b28712b77419f68657462494e103.tar.gz external_llvm-5e2b05a71e81b28712b77419f68657462494e103.tar.bz2 | |
Delete dead PHI machine instructions. These can be created due to type
legalization even when the IR-level optimizer has removed dead phis, such
as when the high half of an i64 value is unused on a 32-bit target.
I had to adjust a few test cases that had dead phis.
This is a partial fix for Radar 7627077.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95816 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
| -rw-r--r-- | test/CodeGen/ARM/remat.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/test/CodeGen/ARM/remat.ll b/test/CodeGen/ARM/remat.ll index 367f782..92c1cf1 100644 --- a/test/CodeGen/ARM/remat.ll +++ b/test/CodeGen/ARM/remat.ll @@ -32,16 +32,16 @@ bb.i35: ; preds = %bb142 br label %phi1.exit phi1.exit: ; preds = %bb.i35, %bb142 - %.pn = phi double [ %6, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=0] + %.pn = phi double [ %6, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=1] %9 = phi double [ %8, %bb.i35 ], [ 0.000000e+00, %bb142 ] ; <double> [#uses=1] - %10 = fmul double undef, %9 ; <double> [#uses=0] + %10 = fmul double %.pn, %9 ; <double> [#uses=1] br i1 %14, label %phi0.exit, label %bb.i bb.i: ; preds = %phi1.exit unreachable phi0.exit: ; preds = %phi1.exit - %11 = fsub double %4, undef ; <double> [#uses=1] + %11 = fsub double %4, %10 ; <double> [#uses=1] %12 = fadd double 0.000000e+00, %11 ; <double> [#uses=1] store double %12, double* undef, align 4 br label %bb142 |