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| author | Bernhard Schommer <bernhardschommer@gmail.com> | 2023-01-06 11:06:44 +0100 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2023-02-20 13:29:07 +0100 |
| commit | 431b64db94583fc5e8d08ecc9bd4e105567ed4d5 (patch) | |
| tree | 74c5ac3194f06ab0e76b16603708f0e4a47218a4 | |
| parent | 2057282e475c72a14651c2ec4a66bfe0287a9d43 (diff) | |
| download | compcert-431b64db94583fc5e8d08ecc9bd4e105567ed4d5.tar.gz compcert-431b64db94583fc5e8d08ecc9bd4e105567ed4d5.zip | |
For Thumb, use `movs` for loading immediate constants
It is supported and produces shorter code than `mov`.
| -rw-r--r-- | arm/TargetPrinter.ml | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arm/TargetPrinter.ml b/arm/TargetPrinter.ml index 953bc4f4..3f67dc24 100644 --- a/arm/TargetPrinter.ml +++ b/arm/TargetPrinter.ml @@ -277,9 +277,9 @@ struct thumbS ireg r1 ireg r2 ireg r3 | Pmla(r1, r2, r3, r4) -> fprintf oc " mla %a, %a, %a, %a\n" ireg r1 ireg r2 ireg r3 ireg r4 - | Pmov(r1, (SOimm _ | SOreg _ as so)) -> + | Pmov(r1, SOreg reg) -> (* No S flag even in Thumb2 mode *) - fprintf oc " mov %a, %a\n" ireg r1 shift_op so + fprintf oc " mov %a, %a\n" ireg r1 ireg reg | Pmov(r1, so) -> fprintf oc " mov%t %a, %a\n" thumbS ireg r1 shift_op so | Pmovw(r1, n) -> |