[Bug target/106167] New: Missed optimization (memory vs register read)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106167 Bug ID: 106167 Summary: Missed optimization (memory vs register read) Product: gcc Version: 9.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug target/106161] Dubious choice of optimization strategy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106161 --- Comment #3 from Victor Luchitz --- Compilation flags used: -c -std=c11 -g -m2 -mb -Os -fomit-frame-pointer -Wall -Wextra -pedantic -Wno-unused-parameter -Wimplicit-fallthrough=0 -Wno-missing-field-initializers -Wnonnull

[Bug target/106161] Dubious choice of optimization strategy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106161 --- Comment #2 from Victor Luchitz --- Created attachment 53234 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53234=edit Test case Minimal test case. You can see in the disassembly the same pattern as described in the original report.

[Bug target/106161] New: Dubious choice of optimization strategy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106161 Bug ID: 106161 Summary: Dubious choice of optimization strategy Product: gcc Version: 9.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target

[Bug target/100163] -falign-loops sometimes produces invalid code for SH-2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100163 --- Comment #2 from Victor Luchitz --- Here's relevant -S output for -O2: ... sub r1,r15 .align 2 .L186: mov.w @r2,r0 extu.w r0,r4 And for -O2 -fno-align-loops: ... sub r1,r15 .L186:

[Bug c/100163] New: -falign-loops sometimes produces invalid code for SH-2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100163 Bug ID: 100163 Summary: -falign-loops sometimes produces invalid code for SH-2 Product: gcc Version: 9.3.0 Status: UNCONFIRMED Severity: normal Priority: P3