1 ; RUN: llc < %s -march=x86 | FileCheck %s 2 3 ; This test should get one and only one register to register mov. 4 ; CHECK-LABEL: t: 5 ; CHECK: movl 6 ; CHECK-NOT: mov 7 ; CHECK: ret 8 9 define signext i16 @t() { 10 entry: 11 %tmp180 = load i16, i16* null, align 2 ; <i16> [#uses=3] 12 %tmp180181 = sext i16 %tmp180 to i32 ; <i32> [#uses=1] 13 %tmp182 = add i16 %tmp180, 10 14 %tmp185 = icmp slt i16 %tmp182, 0 ; <i1> [#uses=1] 15 br i1 %tmp185, label %cond_true188, label %cond_next245 16 17 cond_true188: ; preds = %entry 18 %tmp195196 = trunc i16 %tmp180 to i8 ; <i8> [#uses=0] 19 ret i16 %tmp180 20 21 cond_next245: ; preds = %entry 22 %tmp256 = and i32 %tmp180181, 15 ; <i32> [#uses=0] 23 %tmp3 = trunc i32 %tmp256 to i16 24 ret i16 %tmp3 25 } 26
