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[InstCombine] add tests for missing vector icmp folds

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llvm-svn: 278689
This commit is contained in:
Sanjay Patel 2016-08-15 17:55:39 +00:00
parent 771f098a4d
commit a8f0037451
1 changed files with 37 additions and 0 deletions
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37
test/Transforms/InstCombine/apint-shift.ll
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@ -205,6 +205,7 @@ define i1 @test16(i84 %X) {
ret i1 %cmp
}
; FIXME: Vectors should fold too.
define <2 x i1> @test16vec(<2 x i84> %X) {
; CHECK-LABEL: @test16vec(
; CHECK-NEXT: [[SHR1:%.*]] = lshr <2 x i84> %X, <i84 4, i84 4>
@ -229,6 +230,18 @@ define i1 @test17(i106 %A) {
ret i1 %C
}
; FIXME: Vectors should fold too.
define <2 x i1> @test17vec(<2 x i106> %A) {
; CHECK-LABEL: @test17vec(
; CHECK-NEXT: [[B:%.*]] = lshr <2 x i106> %A, <i106 3, i106 3>
; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i106> [[B]], <i106 1234, i106 1234>
; CHECK-NEXT: ret <2 x i1> [[C]]
;
%B = lshr <2 x i106> %A, <i106 3, i106 3>
%C = icmp eq <2 x i106> %B, <i106 1234, i106 1234>
ret <2 x i1> %C
}
define i1 @test18(i11 %A) {
; CHECK-LABEL: @test18(
; CHECK-NEXT: ret i1 false
@ -248,6 +261,18 @@ define i1 @test19(i37 %A) {
ret i1 %C
}
; FIXME: Vectors should fold too.
define <2 x i1> @test19vec(<2 x i37> %A) {
; CHECK-LABEL: @test19vec(
; CHECK-NEXT: [[B:%.*]] = ashr <2 x i37> %A, <i37 2, i37 2>
; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i37> [[B]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[C]]
;
%B = ashr <2 x i37> %A, <i37 2, i37 2>
%C = icmp eq <2 x i37> %B, zeroinitializer
ret <2 x i1> %C
}
define i1 @test19a(i39 %A) {
; CHECK-LABEL: @test19a(
; CHECK-NEXT: [[C:%.*]] = icmp ugt i39 %A, -5
@ -258,6 +283,18 @@ define i1 @test19a(i39 %A) {
ret i1 %C
}
; FIXME: Vectors should fold too.
define <2 x i1> @test19a_vec(<2 x i39> %A) {
; CHECK-LABEL: @test19a_vec(
; CHECK-NEXT: [[B:%.*]] = ashr <2 x i39> %A, <i39 2, i39 2>
; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i39> [[B]], <i39 -1, i39 -1>
; CHECK-NEXT: ret <2 x i1> [[C]]
;
%B = ashr <2 x i39> %A, <i39 2, i39 2>
%C = icmp eq <2 x i39> %B, <i39 -1, i39 -1>
ret <2 x i1> %C
}
define i1 @test20(i13 %A) {
; CHECK-LABEL: @test20(
; CHECK-NEXT: ret i1 false