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Commit Graph

Author	SHA1	Message	Date
Zi Xuan Wu	cf4d477b0b	[PowerPC] Fix assert from machine verify pass that missing undef register flag Fix assert about using an undefined physical register in machine instruction verify pass. The reason is that register flag undef is missing when doing transformation from If Conversion Pass. ``` Bad machine code: Using an undefined physical register - function: func_65 - basic block: %bb.0 entry (0x10024740738) - instruction: BCLR killed $cr5lt, implicit $lr8, implicit $rm, implicit undef $x3 - operand 0: killed $cr5lt LLVM ERROR: Found 1 machine code errors. ``` There are also other existing testcases with same issue. So I add -verify-machineinstrs option to open verifying. Differential Revision: https://reviews.llvm.org/D55408 llvm-svn: 348566	2018-12-07 05:25:16 +00:00
Nico Rieck	35a237d4ed	Actually call FileCheck in tests llvm-svn: 201491	2014-02-16 13:27:39 +00:00
Hal Finkel	25e4a0d418	Don't form PPC CTR loops for over-sized exit counts Although you can't generate this from C on PPC64, if you have a loop using a 64-bit counter on PPC32 then you can't form a CTR-based loop for it. This had been cauing the PPCCTRLoops pass to assert. Thanks to Joerg Sonnenberger for providing a test case! llvm-svn: 185361	2013-07-01 19:34:59 +00:00

Author

SHA1

Message

Date

Zi Xuan Wu

cf4d477b0b

[PowerPC] Fix assert from machine verify pass that missing undef register flag

Fix assert about using an undefined physical register in machine instruction verify pass. 
The reason is that register flag undef is missing when doing transformation from If Conversion Pass.

```
Bad machine code: Using an undefined physical register 
- function:    func_65
- basic block: %bb.0 entry (0x10024740738)
- instruction: BCLR killed $cr5lt, implicit $lr8, implicit $rm, implicit undef $x3
- operand 0:   killed $cr5lt
LLVM ERROR: Found 1 machine code errors.
```

There are also other existing testcases with same issue. So I add -verify-machineinstrs option to open verifying.

Differential Revision: https://reviews.llvm.org/D55408

llvm-svn: 348566

2018-12-07 05:25:16 +00:00

Nico Rieck

35a237d4ed

Actually call FileCheck in tests

llvm-svn: 201491

2014-02-16 13:27:39 +00:00

Hal Finkel

25e4a0d418

Don't form PPC CTR loops for over-sized exit counts

Although you can't generate this from C on PPC64, if you have a loop using a
64-bit counter on PPC32 then you can't form a CTR-based loop for it. This had
been cauing the PPCCTRLoops pass to assert.

Thanks to Joerg Sonnenberger for providing a test case!

llvm-svn: 185361

2013-07-01 19:34:59 +00:00

3 Commits