From a528e3730240c6da598fc71954314235fa6a11bb Mon Sep 17 00:00:00 2001 From: bjorn3 Date: Fri, 20 Dec 2019 12:01:55 +0100 Subject: [PATCH] Fix codegen of ctlz and cttz intrinsics --- src/intrinsics.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/intrinsics.rs b/src/intrinsics.rs index e609abee1e808..80049a2a55f10 100644 --- a/src/intrinsics.rs +++ b/src/intrinsics.rs @@ -681,7 +681,8 @@ pub fn codegen_intrinsic_call<'tcx>( let msb_lz = fx.bcx.ins().clz(msb); let msb_is_zero = fx.bcx.ins().icmp_imm(IntCC::Equal, msb, 0); let lsb_lz_plus_64 = fx.bcx.ins().iadd_imm(lsb_lz, 64); - fx.bcx.ins().select(msb_is_zero, lsb_lz_plus_64, msb_lz) + let res = fx.bcx.ins().select(msb_is_zero, lsb_lz_plus_64, msb_lz); + fx.bcx.ins().uextend(types::I128, res) } else { fx.bcx.ins().clz(arg) }; @@ -697,7 +698,8 @@ pub fn codegen_intrinsic_call<'tcx>( let msb_tz = fx.bcx.ins().ctz(msb); let lsb_is_zero = fx.bcx.ins().icmp_imm(IntCC::Equal, lsb, 0); let msb_tz_plus_64 = fx.bcx.ins().iadd_imm(msb_tz, 64); - fx.bcx.ins().select(lsb_is_zero, msb_tz_plus_64, lsb_tz) + let res = fx.bcx.ins().select(lsb_is_zero, msb_tz_plus_64, lsb_tz); + fx.bcx.ins().uextend(types::I128, res) } else { fx.bcx.ins().ctz(arg) };