| Priority | medium |
|---|---|
| Bug ID | 65873 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | R600/SI: Cannot select store with truncate to 32-bit |
| Severity | normal |
| Classification | Unclassified |
| OS | Linux (All) |
| Reporter | awatry@gmail.com |
| Hardware | Other |
| Status | NEW |
| Version | git |
| Component | Drivers/Gallium/radeonsi |
| Product | Mesa |
Created attachment 80970 [details]
Piglit test that triggers the error on SI
Running the attached piglit CL test, I'm getting the following on R600/SI
(Pitcairn, 7850):
LLVM ERROR: Cannot select: 0x2add8b0: ch = store 0x2add7b0, 0x2adcfb0,
0x2adc640, 0x2adbd40<ST4[%out+4], trunc to i32> [ORD=4] [ID=17]
0x2adcfb0: i64,ch = load 0x20468b8, 0x2add1b0, 0x2adbd40<LD4[%mem+4], zext
from i32> [ORD=1] [ID=14]
0x2add1b0: i64 = add 0x2adc140, 0x2adc540 [ORD=1] [ID=11]
0x2adc140: i64,ch = load 0x20468b8, 0x2adc040, 0x2adbd40<LD8[undef]>
[ID=9]
0x2adc040: i64 = add 0x2adba40, 0x2adbf40 [ID=7]
0x2adba40: i64,ch = CopyFromReg 0x20468b8, 0x2adb940 [ID=6]
0x2adb940: i64 = Register %vreg0 [ID=1]
0x2adbf40: i64 = Constant<44> [ID=4]
0x2adbd40: i64 = undef [ID=3]
0x2adc540: i64 = Constant<4> [ID=5]
0x2adbd40: i64 = undef [ID=3]
0x2adc640: i64 = add 0x2adbe40, 0x2adc540 [ORD=4] [ID=13]
0x2adbe40: i64,ch = load 0x20468b8, 0x2adbc40, 0x2adbd40<LD8[undef]>
[ID=10]
0x2adbc40: i64 = add 0x2adba40, 0x2adbb40 [ID=8]
0x2adba40: i64,ch = CopyFromReg 0x20468b8, 0x2adb940 [ID=6]
0x2adb940: i64 = Register %vreg0 [ID=1]
0x2adbb40: i64 = Constant<36> [ID=2]
0x2adbd40: i64 = undef [ID=3]
0x2adc540: i64 = Constant<4> [ID=5]
0x2adbd40: i64 = undef [ID=3]
I'll attach a dump from llc -debug-_only_=isel in a minute.
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