; This test is designed to run 4 times, once with function attribute +c, ; once with function attribute -c for eq/ne in icmp ; The optimization should appear only with +c, otherwise default isel should be ; choosen. ; ; RUN: llc -mtriple=riscv32 -target-abi ilp32d -mattr=+c,+f,+d -filetype=obj \ ; RUN: -disable-block-placement < %s \ ; RUN: | llvm-objdump -d --triple=riscv32 --mattr=+c,+f,+d -M no-aliases - \ ; RUN: | FileCheck -check-prefix=RV32IFDC %s ; ; RUN: llc -mtriple=riscv32 -target-abi ilp32d -mattr=+zca,+f,+d -filetype=obj \ ; RUN: -disable-block-placement < %s \ ; RUN: | llvm-objdump -d --triple=riscv32 --mattr=+zca,+f,+d -M no-aliases - \ ; RUN: | FileCheck -check-prefix=RV32IFDC %s ; ; RUN: llc -mtriple=riscv32 -target-abi ilp32d -mattr=-c,+f,+d -filetype=obj \ ; RUN: -disable-block-placement < %s \ ; RUN: | llvm-objdump -d --triple=riscv32 --mattr=-c,+f,+d -M no-aliases - \ ; RUN: | FileCheck -check-prefix=RV32IFD %s ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x14 ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x14 ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 20 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x14 ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x14 ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 20 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], -0x14 ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x14 ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -20 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], -0x14 ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x14 ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -20 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x1f ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x1f ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_edge_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 31 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x1f ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x1f ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_edge_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 31 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], -0x20 ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x20 ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_edge_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -32 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is small and fit in 6 bit (compress imm) ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], -0x20 ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x20 ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_small_edge_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -32 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x20 ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x20 ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_ledge_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 32 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x20 ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x20 ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_ledge_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 32 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x21 ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x21 ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_ledge_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -33 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x21 ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x21 ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_ledge_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -33 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x3f ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x3f ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 63 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x3f ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x3f ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 63 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x3f ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x3f ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -63 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x3f ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x3f ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -63 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x7ff ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x7ff ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_bedge_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 2047 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm) ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], -0x7ff ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, 0x7ff ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_bedge_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 2047 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm), negative value fit in 12 bit too. ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x7ff ; RV32IFDC: c.bnez [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x7ff ; RV32IFD: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_bedge_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -2047 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is medium and not fit in 6 bit (compress imm), ; but fit in 12 bit (imm), negative value fit in 12 bit too. ; RV32IFDC-LABEL: : ; RV32IFDC: addi [[MAYZEROREG:.*]], [[REG:.*]], 0x7ff ; RV32IFDC: c.beqz [[MAYZEROREG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG:.*]], zero, -0x7ff ; RV32IFD: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] define i32 @f_medium_bedge_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -2047 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is big and do not fit in 12 bit (imm), fit in i32 ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x1 ; RV32IFDC: c.slli [[REG]], 0xb ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG1:.*]], zero, 0x1 ; RV32IFD: slli [[REG2:.*]], [[REG1]], 0xb ; RV32IFD: bne [[ANOTHER:.*]], [[REG2]], [[PLACE:.*]] define i32 @f_big_ledge_pos_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, 2048 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is big and do not fit in 12 bit (imm), fit in i32 ; RV32IFDC-LABEL: : ; RV32IFDC: c.li [[REG:.*]], 0x1 ; RV32IFDC: c.slli [[REG]], 0xb ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: addi [[REG1:.*]], zero, 0x1 ; RV32IFD: slli [[REG2:.*]], [[REG1]], 0xb ; RV32IFD: beq [[ANOTHER:.*]], [[REG2]], [[PLACE:.*]] define i32 @f_big_ledge_pos_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, 2048 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is big and do not fit in 12 bit (imm), fit in i32 ; RV32IFDC-LABEL: : ; RV32IFDC: c.lui [[REG1:.*]], 0xfffff ; RV32IFDC: addi [[REG2:.*]], [[REG1]], 0x7ff ; RV32IFDC: bne [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: lui [[REG1:.*]], 0xfffff ; RV32IFD: addi [[REG2:.*]], [[REG1]], 0x7ff ; RV32IFD: bne [[ANOTHER:.*]], [[REG2]], [[PLACE:.*]] define i32 @f_big_ledge_neg_eq(i32 %in0) minsize { %cmp = icmp eq i32 %in0, -2049 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet } ; constant is big and do not fit in 12 bit (imm), fit in i32 ; RV32IFDC-LABEL: : ; RV32IFDC: c.lui [[REG1:.*]], 0xfffff ; RV32IFDC: addi [[REG2:.*]], [[REG1]], 0x7ff ; RV32IFDC: beq [[ANOTHER:.*]], [[REG]], [[PLACE:.*]] ; --- no compress extension ; RV32IFD-LABEL: : ; RV32IFD: lui [[REG1:.*]], 0xfffff ; RV32IFD: addi [[REG2:.*]], [[REG1]], 0x7ff ; RV32IFD: beq [[ANOTHER:.*]], [[REG2]], [[PLACE:.*]] define i32 @f_big_ledge_neg_ne(i32 %in0) minsize { %cmp = icmp ne i32 %in0, -2049 br i1 %cmp, label %if.then, label %if.else if.then: %call = shl i32 %in0, 1 br label %if.end if.else: %call2 = add i32 %in0, 42 br label %if.end if.end: %toRet = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %toRet }