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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 3/4] tcg: Document ctpop opcodes
Date: Thu, 11 Nov 2021 12:06:55 +0100
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|
| Series |
[PULL,1/4] tcg/optimize: Add an extra cast to fold_extract2
|
expand
|
diff --git a/tcg/README b/tcg/README index c2e7762a37..bc15cc3b32 100644 --- a/tcg/README +++ b/tcg/README @@ -254,6 +254,12 @@ t0 = t1 ? clz(t1) : t2 t0 = t1 ? ctz(t1) : t2 +* ctpop_i32/i64 t0, t1 + +t0 = number of bits set in t1 +With "ctpop" short for "count population", matching +the function name used in include/qemu/host-utils.h. + ********* Shifts/Rotates * shl_i32/i64 t0, t1, t2