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add tests to show missing bitcasted logic transform

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llvm-svn: 261799
This commit is contained in:
Sanjay Patel 2016-02-24 22:31:18 +00:00
parent 7446ce3b8d
commit 234a2e7455
2 changed files with 83 additions and 0 deletions
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42
test/Transforms/InstCombine/bitcast-bigendian.ll
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@ -89,3 +89,45 @@ define <2 x float> @test6(float %A){
; CHECK-NEXT: insertelement <2 x float> {{.*}}, float 4.200000e+01, i32 1
; CHECK: ret
}
; FIXME: Do the logic in the original type for the following 3 tests.
; Verify that 'xor' of vector and constant is done as a vector bitwise op before the bitcast.
define <2 x i32> @xor_bitcast_vec_to_vec(<1 x i64> %a) {
%t1 = bitcast <1 x i64> %a to <2 x i32>
%t2 = xor <2 x i32> <i32 1, i32 2>, %t1
ret <2 x i32> %t2
; CHECK-LABEL: @xor_bitcast_vec_to_vec(
; CHECK-NEXT: %t1 = bitcast <1 x i64> %a to <2 x i32>
; CHECK-NEXT: %t2 = xor <2 x i32> %t1, <i32 1, i32 2>
; CHECK-NEXT: ret <2 x i32> %t2
}
; Verify that 'and' of integer and constant is done as a vector bitwise op before the bitcast.
define i64 @and_bitcast_vec_to_int(<2 x i32> %a) {
%t1 = bitcast <2 x i32> %a to i64
%t2 = and i64 %t1, 3
ret i64 %t2
; CHECK-LABEL: @and_bitcast_vec_to_int(
; CHECK-NEXT: %t1 = bitcast <2 x i32> %a to i64
; CHECK-NEXT: %t2 = and i64 %t1, 3
; CHECK-NEXT: ret i64 %t2
}
; Verify that 'or' of vector and constant is done as an integer bitwise op before the bitcast.
define <2 x i32> @or_bitcast_int_to_vec(i64 %a) {
%t1 = bitcast i64 %a to <2 x i32>
%t2 = or <2 x i32> %t1, <i32 1, i32 2>
ret <2 x i32> %t2
; CHECK-LABEL: @or_bitcast_int_to_vec(
; CHECK-NEXT: %t1 = bitcast i64 %a to <2 x i32>
; CHECK-NEXT: %t2 = or <2 x i32> %t1, <i32 1, i32 2>
; CHECK-NEXT: ret <2 x i32> %t2
}

41
test/Transforms/InstCombine/bitcast.ll
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@ -30,6 +30,47 @@ define <2 x i32> @xor_two_vector_bitcasts(<1 x i64> %a, <1 x i64> %b) {
; CHECK-NEXT: ret <2 x i32> %t3
}
; FIXME: Do the logic in the original type for the following 3 tests.
; Verify that 'xor' of vector and constant is done as a vector bitwise op before the bitcast.
define <2 x i32> @xor_bitcast_vec_to_vec(<1 x i64> %a) {
%t1 = bitcast <1 x i64> %a to <2 x i32>
%t2 = xor <2 x i32> <i32 1, i32 2>, %t1
ret <2 x i32> %t2
; CHECK-LABEL: @xor_bitcast_vec_to_vec(
; CHECK-NEXT: %t1 = bitcast <1 x i64> %a to <2 x i32>
; CHECK-NEXT: %t2 = xor <2 x i32> %t1, <i32 1, i32 2>
; CHECK-NEXT: ret <2 x i32> %t2
}
; Verify that 'and' of integer and constant is done as a vector bitwise op before the bitcast.
define i64 @and_bitcast_vec_to_int(<2 x i32> %a) {
%t1 = bitcast <2 x i32> %a to i64
%t2 = and i64 %t1, 3
ret i64 %t2
; CHECK-LABEL: @and_bitcast_vec_to_int(
; CHECK-NEXT: %t1 = bitcast <2 x i32> %a to i64
; CHECK-NEXT: %t2 = and i64 %t1, 3
; CHECK-NEXT: ret i64 %t2
}
; Verify that 'or' of vector and constant is done as an integer bitwise op before the bitcast.
define <2 x i32> @or_bitcast_int_to_vec(i64 %a) {
%t1 = bitcast i64 %a to <2 x i32>
%t2 = or <2 x i32> %t1, <i32 1, i32 2>
ret <2 x i32> %t2
; CHECK-LABEL: @or_bitcast_int_to_vec(
; CHECK-NEXT: %t1 = bitcast i64 %a to <2 x i32>
; CHECK-NEXT: %t2 = or <2 x i32> %t1, <i32 1, i32 2>
; CHECK-NEXT: ret <2 x i32> %t2
}
; Optimize bitcasts that are extracting low element of vector. This happens
; because of SRoA.
; rdar://7892780