https://bugs.freedesktop.org/show_bug.cgi?id=65873
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 --> https://bugs.freedesktop.org/attachment.cgi?id=80970&action=edit 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.