1! This file tests the -Rpass family of flags (-Rpass, -Rpass-missed 2! and -Rpass-analysis) 3! loop-delete isn't enabled at O0 so we use at least O1 4 5! DEFINE: %{output} = -emit-llvm -flang-deprecated-no-hlfir -o /dev/null 2>&1 6 7! Check fc1 can handle -Rpass 8! RUN: %flang_fc1 %s -O1 -Rpass %{output} 2>&1 | FileCheck %s --check-prefix=REMARKS 9 10! Check that we can override -Rpass= with -Rno-pass. 11! RUN: %flang_fc1 %s -O1 -Rpass -Rno-pass %{output} 2>&1 | FileCheck %s --allow-empty --check-prefix=NO-REMARKS 12 13! Check -Rno-pass, -Rno-pass-analysis, -Rno-pass-missed nothing emitted 14! RUN: %flang %s -O1 -Rno-pass -S %{output} 2>&1 | FileCheck %s --allow-empty --check-prefix=NO-REMARKS 15! RUN: %flang %s -O1 -Rno-pass-missed -S %{output} 2>&1 | FileCheck %s --allow-empty --check-prefix=NO-REMARKS 16! RUN: %flang %s -O1 -Rno-pass-analysis -S %{output} 2>&1 | FileCheck %s --allow-empty --check-prefix=NO-REMARKS 17 18! Check valid -Rpass regex 19! RUN: %flang %s -O1 -Rpass=loop -S %{output} 2>&1 | FileCheck %s --check-prefix=PASS-REGEX-LOOP-ONLY 20 21! Check valid -Rpass-missed regex 22! RUN: %flang %s -O1 -Rpass-missed=loop -S %{output} 2>&1 | FileCheck %s --check-prefix=MISSED-REGEX-LOOP-ONLY 23 24! Check valid -Rpass-analysis regex 25! RUN: %flang %s -O1 -Rpass-analysis=loop -S %{output} 2>&1 | FileCheck %s --check-prefix=ANALYSIS-REGEX-LOOP-ONLY 26 27! Check full -Rpass message is emitted 28! RUN: %flang %s -O1 -Rpass -S %{output} 2>&1 | FileCheck %s --check-prefix=PASS 29 30! Check full -Rpass-missed message is emitted 31! RUN: %flang %s -O1 -Rpass-missed -S %{output} 2>&1 | FileCheck %s --check-prefix=MISSED 32 33! Check full -Rpass-analysis message is emitted 34! RUN: %flang %s -O1 -Rpass-analysis -S -o /dev/null 2>&1 | FileCheck %s --check-prefix=ANALYSIS 35 36! REMARKS: remark: 37! NO-REMARKS-NOT: remark: 38 39 40! With plain -Rpass, -Rpass-missed or -Rpass-analysis, we expect remarks related to 2 opportunities (loop vectorisation / loop delete and load hoisting). 41! Once we start filtering, this is reduced to 1 one of the loop passes. 42 43! PASS-REGEX-LOOP-ONLY-NOT: optimization-remark.f90:77:7: remark: hoisting load [-Rpass=licm] 44! PASS-REGEX-LOOP-ONLY: optimization-remark.f90:79:5: remark: Loop deleted because it is invariant [-Rpass=loop-delete] 45 46! MISSED-REGEX-LOOP-ONLY-NOT: optimization-remark.f90:77:7: remark: failed to hoist load with loop-invariant address because load is conditionally executed [-Rpass-missed=licm] 47! MISSED-REGEX-LOOP-ONLY: optimization-remark.f90:72:4: remark: loop not vectorized [-Rpass-missed=loop-vectorize] 48 49 50! ANALYSIS-REGEX-LOOP-ONLY: optimization-remark.f90:74:7: remark: loop not vectorized: unsafe dependent memory operations in loop 51! ANALYSIS-REGEX-LOOP-ONLY-NOT: remark: {{.*}}: IR instruction count changed from {{[0-9]+}} to {{[0-9]+}}; Delta: {{-?[0-9]+}} [-Rpass-analysis=size-info] 52 53! PASS: optimization-remark.f90:79:5: remark: Loop deleted because it is invariant [-Rpass=loop-delete] 54 55! MISSED: optimization-remark.f90:73:7: remark: failed to hoist load with loop-invariant address 56! MISSED: optimization-remark.f90:72:4: remark: loop not vectorized [-Rpass-missed=loop-vectorize] 57! MISSED-NOT: optimization-remark.f90:75:7: remark: loop not vectorized: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop 58! MISSED-NOT: Unknown data dependence. Memory location is the same as accessed at optimization-remark.f90:78:7 [-Rpass-analysis=loop-vectorize] 59 60! ANALYSIS: optimization-remark.f90:74:7: remark: loop not vectorized: unsafe dependent memory operations in loop. 61! ANALYSIS: remark: {{.*}} instructions in function [-Rpass-analysis=asm-printer] 62 63subroutine swap_real(a1, a2) 64 implicit none 65 66 real, dimension(1:2) :: aR1 67 integer :: i, n 68 real, intent(inout) :: a1(:), a2(:) 69 real :: a 70 71! Swap 72 do i = 1, min(size(a1), size(a2)) 73 a = a1(i) 74 a1(i) = a2(i) 75 a2(i) = a 76 end do 77 78! Do a random loop to generate a successful loop-delete pass 79 do n = 1,2 80 aR1(n) = n * 1.34 81 end do 82 83end subroutine swap_real 84