; RUN: llc < %s -march=nvptx -mcpu=sm_20 -O2 | FileCheck %s ; ************************************* ; * Cases with no min/max define i32 @ab_eq_i32(i32 %a, i32 %b) { ; LABEL: @ab_slt_i32 ; CHECK-NOT: min ; CHECK-NOT: max %cmp = icmp eq i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i64 @ba_ne_i64(i64 %a, i64 %b) { ; LABEL: @ab_ne_i64 ; CHECK-NOT: min ; CHECK-NOT: max %cmp = icmp ne i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } ; PTX does have e.g. max.s16, but at least as of Kepler (sm_3x) that ; gets compiled to SASS that converts the 16 bit parameters to 32 bit ; before using a 32 bit instruction. That is probably not a win and ; NVCC 7.5 does not emit 16 bit min/max either, presumably for that ; reason. define i16 @ab_ugt_i16(i16 %a, i16 %b) { ; LABEL: @ab_ugt_i16 ; CHECK-NOT: min ; CHECK-NOT: max %cmp = icmp ugt i16 %a, %b %sel = select i1 %cmp, i16 %a, i16 %b ret i16 %sel } ; ************************************* ; * All variations with i32 ; *** ab, unsigned, i32 define i32 @ab_ugt_i32(i32 %a, i32 %b) { ; LABEL: @ab_ugt_i32 ; CHECK: max.u32 %cmp = icmp ugt i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_uge_i32(i32 %a, i32 %b) { ; LABEL: @ab_uge_i32 ; CHECK: max.u32 %cmp = icmp uge i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_ult_i32(i32 %a, i32 %b) { ; LABEL: @ab_ult_i32 ; CHECK: min.u32 %cmp = icmp ult i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_ule_i32(i32 %a, i32 %b) { ; LABEL: @ab_ule_i32 ; CHECK: min.u32 %cmp = icmp ule i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } ; *** ab, signed, i32 define i32 @ab_sgt_i32(i32 %a, i32 %b) { ; LABEL: @ab_ugt_i32 ; CHECK: max.s32 %cmp = icmp sgt i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_sge_i32(i32 %a, i32 %b) { ; LABEL: @ab_sge_i32 ; CHECK: max.s32 %cmp = icmp sge i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_slt_i32(i32 %a, i32 %b) { ; LABEL: @ab_slt_i32 ; CHECK: min.s32 %cmp = icmp slt i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } define i32 @ab_sle_i32(i32 %a, i32 %b) { ; LABEL: @ab_sle_i32 ; CHECK: min.s32 %cmp = icmp sle i32 %a, %b %sel = select i1 %cmp, i32 %a, i32 %b ret i32 %sel } ; *** ba, unsigned, i32 define i32 @ba_ugt_i32(i32 %a, i32 %b) { ; LABEL: @ba_ugt_i32 ; CHECK: min.u32 %cmp = icmp ugt i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_uge_i32(i32 %a, i32 %b) { ; LABEL: @ba_uge_i32 ; CHECK: min.u32 %cmp = icmp uge i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_ult_i32(i32 %a, i32 %b) { ; LABEL: @ba_ult_i32 ; CHECK: max.u32 %cmp = icmp ult i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_ule_i32(i32 %a, i32 %b) { ; LABEL: @ba_ule_i32 ; CHECK: max.u32 %cmp = icmp ule i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } ; *** ba, signed, i32 define i32 @ba_sgt_i32(i32 %a, i32 %b) { ; LBAEL: @ba_ugt_i32 ; CHECK: min.s32 %cmp = icmp sgt i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_sge_i32(i32 %a, i32 %b) { ; LABEL: @ba_sge_i32 ; CHECK: min.s32 %cmp = icmp sge i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_slt_i32(i32 %a, i32 %b) { ; LABEL: @ba_slt_i32 ; CHECK: max.s32 %cmp = icmp slt i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } define i32 @ba_sle_i32(i32 %a, i32 %b) { ; LABEL: @ba_sle_i32 ; CHECK: max.s32 %cmp = icmp sle i32 %a, %b %sel = select i1 %cmp, i32 %b, i32 %a ret i32 %sel } ; ************************************* ; * All variations with i64 ; *** ab, unsigned, i64 define i64 @ab_ugt_i64(i64 %a, i64 %b) { ; LABEL: @ab_ugt_i64 ; CHECK: max.u64 %cmp = icmp ugt i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_uge_i64(i64 %a, i64 %b) { ; LABEL: @ab_uge_i64 ; CHECK: max.u64 %cmp = icmp uge i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_ult_i64(i64 %a, i64 %b) { ; LABEL: @ab_ult_i64 ; CHECK: min.u64 %cmp = icmp ult i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_ule_i64(i64 %a, i64 %b) { ; LABEL: @ab_ule_i64 ; CHECK: min.u64 %cmp = icmp ule i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } ; *** ab, signed, i64 define i64 @ab_sgt_i64(i64 %a, i64 %b) { ; LABEL: @ab_ugt_i64 ; CHECK: max.s64 %cmp = icmp sgt i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_sge_i64(i64 %a, i64 %b) { ; LABEL: @ab_sge_i64 ; CHECK: max.s64 %cmp = icmp sge i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_slt_i64(i64 %a, i64 %b) { ; LABEL: @ab_slt_i64 ; CHECK: min.s64 %cmp = icmp slt i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } define i64 @ab_sle_i64(i64 %a, i64 %b) { ; LABEL: @ab_sle_i64 ; CHECK: min.s64 %cmp = icmp sle i64 %a, %b %sel = select i1 %cmp, i64 %a, i64 %b ret i64 %sel } ; *** ba, unsigned, i64 define i64 @ba_ugt_i64(i64 %a, i64 %b) { ; LABEL: @ba_ugt_i64 ; CHECK: min.u64 %cmp = icmp ugt i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_uge_i64(i64 %a, i64 %b) { ; LABEL: @ba_uge_i64 ; CHECK: min.u64 %cmp = icmp uge i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_ult_i64(i64 %a, i64 %b) { ; LABEL: @ba_ult_i64 ; CHECK: max.u64 %cmp = icmp ult i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_ule_i64(i64 %a, i64 %b) { ; LABEL: @ba_ule_i64 ; CHECK: max.u64 %cmp = icmp ule i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } ; *** ba, signed, i64 define i64 @ba_sgt_i64(i64 %a, i64 %b) { ; LBAEL: @ba_ugt_i64 ; CHECK: min.s64 %cmp = icmp sgt i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_sge_i64(i64 %a, i64 %b) { ; LABEL: @ba_sge_i64 ; CHECK: min.s64 %cmp = icmp sge i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_slt_i64(i64 %a, i64 %b) { ; LABEL: @ba_slt_i64 ; CHECK: max.s64 %cmp = icmp slt i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel } define i64 @ba_sle_i64(i64 %a, i64 %b) { ; LABEL: @ba_sle_i64 ; CHECK: max.s64 %cmp = icmp sle i64 %a, %b %sel = select i1 %cmp, i64 %b, i64 %a ret i64 %sel }