1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; Verify that the non-default calling conv doesn't prevent the libcall simplification 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Worker@.str = private unnamed_addr constant [4 x i8] c"abc\00", align 1 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdefine arm_aapcscc i32 @_abs(i32 %i) nounwind readnone { 7*9880d681SAndroid Build Coastguard Worker; CHECK: _abs 8*9880d681SAndroid Build Coastguard Worker %call = tail call arm_aapcscc i32 @abs(i32 %i) nounwind readnone 9*9880d681SAndroid Build Coastguard Worker ret i32 %call 10*9880d681SAndroid Build Coastguard Worker; CHECK: %[[ISPOS:.*]] = icmp sgt i32 %i, -1 11*9880d681SAndroid Build Coastguard Worker; CHECK: %[[NEG:.*]] = sub i32 0, %i 12*9880d681SAndroid Build Coastguard Worker; CHECK: %[[RET:.*]] = select i1 %[[ISPOS]], i32 %i, i32 %[[NEG]] 13*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 %[[RET]] 14*9880d681SAndroid Build Coastguard Worker} 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Workerdeclare arm_aapcscc i32 @abs(i32) nounwind readnone 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Workerdefine arm_aapcscc i32 @_labs(i32 %i) nounwind readnone { 19*9880d681SAndroid Build Coastguard Worker; CHECK: _labs 20*9880d681SAndroid Build Coastguard Worker %call = tail call arm_aapcscc i32 @labs(i32 %i) nounwind readnone 21*9880d681SAndroid Build Coastguard Worker ret i32 %call 22*9880d681SAndroid Build Coastguard Worker; CHECK: %[[ISPOS:.*]] = icmp sgt i32 %i, -1 23*9880d681SAndroid Build Coastguard Worker; CHECK: %[[NEG:.*]] = sub i32 0, %i 24*9880d681SAndroid Build Coastguard Worker; CHECK: %[[RET:.*]] = select i1 %[[ISPOS]], i32 %i, i32 %[[NEG]] 25*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 %[[RET]] 26*9880d681SAndroid Build Coastguard Worker} 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Workerdeclare arm_aapcscc i32 @labs(i32) nounwind readnone 29*9880d681SAndroid Build Coastguard Worker 30*9880d681SAndroid Build Coastguard Workerdefine arm_aapcscc i32 @_strlen1() { 31*9880d681SAndroid Build Coastguard Worker; CHECK: _strlen1 32*9880d681SAndroid Build Coastguard Worker %call = tail call arm_aapcscc i32 @strlen(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0)) 33*9880d681SAndroid Build Coastguard Worker ret i32 %call 34*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 3 35*9880d681SAndroid Build Coastguard Worker} 36*9880d681SAndroid Build Coastguard Worker 37*9880d681SAndroid Build Coastguard Workerdeclare arm_aapcscc i32 @strlen(i8*) 38*9880d681SAndroid Build Coastguard Worker 39*9880d681SAndroid Build Coastguard Workerdefine arm_aapcscc zeroext i1 @_strlen2(i8* %str) { 40*9880d681SAndroid Build Coastguard Worker; CHECK: _strlen2 41*9880d681SAndroid Build Coastguard Worker %call = tail call arm_aapcscc i32 @strlen(i8* %str) 42*9880d681SAndroid Build Coastguard Worker %cmp = icmp ne i32 %call, 0 43*9880d681SAndroid Build Coastguard Worker ret i1 %cmp 44*9880d681SAndroid Build Coastguard Worker 45*9880d681SAndroid Build Coastguard Worker; CHECK: %[[STRLENFIRST:.*]] = load i8, i8* %str 46*9880d681SAndroid Build Coastguard Worker; CHECK: %[[CMP:.*]] = icmp ne i8 %[[STRLENFIRST]], 0 47*9880d681SAndroid Build Coastguard Worker; CHECK: ret i1 %[[CMP]] 48*9880d681SAndroid Build Coastguard Worker} 49