1; This used to incorrectly use a TMLL for an always-false test at -O0. 2; 3; RUN: llc -O0 < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5define void @test(i8 *%input, i32 *%result) { 6entry: 7; CHECK-NOT: tmll 8 9 %0 = load i8, i8* %input, align 1 10 %1 = trunc i8 %0 to i1 11 %2 = zext i1 %1 to i32 12 %3 = icmp sge i32 %2, 0 13 br i1 %3, label %if.then, label %if.else 14 15if.then: 16 store i32 1, i32* %result, align 4 17 br label %return 18 19if.else: 20 store i32 0, i32* %result, align 4 21 br label %return 22 23return: 24 ret void 25} 26 27