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[Qemu-devel] [PULL 23/29] target/arm: Use tcg_gen_extract_i32 for shifte
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 23/29] target/arm: Use tcg_gen_extract_i32 for shifter_out_im |
Date: |
Fri, 16 Aug 2019 14:17:13 +0100 |
From: Richard Henderson <address@hidden>
Extract is a compact combination of shift + and.
Signed-off-by: Richard Henderson <address@hidden>
Message-id: address@hidden
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
---
target/arm/translate.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 34e65cd80c0..14d6b6d4d28 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -605,14 +605,7 @@ static void gen_sar(TCGv_i32 dest, TCGv_i32 t0, TCGv_i32
t1)
static void shifter_out_im(TCGv_i32 var, int shift)
{
- if (shift == 0) {
- tcg_gen_andi_i32(cpu_CF, var, 1);
- } else {
- tcg_gen_shri_i32(cpu_CF, var, shift);
- if (shift != 31) {
- tcg_gen_andi_i32(cpu_CF, cpu_CF, 1);
- }
- }
+ tcg_gen_extract_i32(cpu_CF, var, shift, 1);
}
/* Shift by immediate. Includes special handling for shift == 0. */
--
2.20.1
- [Qemu-devel] [PULL 05/29] target/arm: Fix routing of singlestep exceptions, (continued)
- [Qemu-devel] [PULL 05/29] target/arm: Fix routing of singlestep exceptions, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 10/29] target/arm: Remove redundant s->pc & ~1, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 11/29] target/arm: Replace s->pc with s->base.pc_next, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 15/29] target/arm: Use unallocated_encoding for aarch32, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 12/29] target/arm: Replace offset with pc in gen_exception_insn, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 18/29] target/arm/cpu: Ensure we can use the pmu with kvm, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 20/29] target/arm/cpu: Use div-round-up to determine predicate register array size, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 21/29] target/arm/kvm64: Fix error returns, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 24/29] target/arm: Use tcg_gen_deposit_i32 for PKHBT, PKHTB, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 27/29] target/arm: Use tcg_gen_rotri_i32 for gen_swap_half, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 23/29] target/arm: Use tcg_gen_extract_i32 for shifter_out_im,
Peter Maydell <=
- [Qemu-devel] [PULL 25/29] target/arm: Remove redundant shift tests, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 22/29] target/arm/kvm64: Move the get/put of fpsimd registers out, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 26/29] target/arm: Use ror32 instead of open-coding the operation, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 28/29] target/arm: Simplify SMMLA, SMMLAR, SMMLS, SMMLSR, Peter Maydell, 2019/08/16
- [Qemu-devel] [PULL 29/29] target/arm: Use tcg_gen_extrh_i64_i32 to extract the high word, Peter Maydell, 2019/08/16
- Re: [Qemu-devel] [PULL 00/29] target-arm queue, Peter Maydell, 2019/08/16