101 lines
4.0 KiB
LLVM
101 lines
4.0 KiB
LLVM
; NOTE: This test case generates a jump table on PowerPC big and little endian
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; NOTE: then verifies that the command line option to enable absolute jump
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; NOTE: table works correctly.
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; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -o - \
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; RUN: -ppc-use-absolute-jumptables -ppc-asm-full-reg-names \
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; RUN: -verify-machineinstrs %s | FileCheck %s -check-prefix=CHECK-LE
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; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -o - \
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; RUN: -ppc-use-absolute-jumptables -ppc-asm-full-reg-names \
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; RUN: -verify-machineinstrs %s | FileCheck %s -check-prefix=CHECK-BE
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%struct.node = type { i8, %struct.node* }
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; Function Attrs: norecurse nounwind readonly
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define zeroext i32 @jumpTableTest(%struct.node* readonly %list) {
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; CHECK-LE-LABEL: jumpTableTest:
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; CHECK-LE: # %bb.0: # %entry
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; CHECK-LE: rldic r[[REG:[0-9]+]], r[[REG]], 3, 29
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; CHECK-LE: ldx r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
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; CHECK-LE: mtctr r[[REG]]
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; CHECK-LE: bctr
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; CHECK-LE: blr
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;
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; CHECK-BE-LABEL: jumpTableTest:
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; CHECK-BE: # %bb.0: # %entry
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; CHECK-BE: rldic r[[REG:[0-9]+]], r[[REG]], 2, 30
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; CHECK-BE: lwax r[[REG]], r[[REG]], r[[REG1:[0-9]+]]
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; CHECK-BE: mtctr r[[REG]]
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; CHECK-BE: bctr
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; CHECK-BE: blr
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entry:
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%cmp36 = icmp eq %struct.node* %list, null
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br i1 %cmp36, label %while.end, label %while.body
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while.body: ; preds = %entry, %sw.epilog
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%result.038 = phi i32 [ %result.1, %sw.epilog ], [ 0, %entry ]
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%current.037 = phi %struct.node* [ %spec.store.select, %sw.epilog ], [ %list, %entry ]
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%next1 = getelementptr inbounds %struct.node, %struct.node* %current.037, i64 0, i32 1
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%0 = load %struct.node*, %struct.node** %next1, align 8
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%cmp2 = icmp eq %struct.node* %0, %current.037
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%spec.store.select = select i1 %cmp2, %struct.node* null, %struct.node* %0
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%type = getelementptr inbounds %struct.node, %struct.node* %current.037, i64 0, i32 0
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%1 = load i8, i8* %type, align 8
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switch i8 %1, label %sw.epilog [
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i8 1, label %sw.bb
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i8 2, label %sw.bb3
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i8 3, label %sw.bb5
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i8 4, label %sw.bb7
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i8 5, label %sw.bb9
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i8 6, label %sw.bb11
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i8 7, label %sw.bb13
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i8 8, label %sw.bb15
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i8 9, label %sw.bb17
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]
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sw.bb: ; preds = %while.body
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%add = add nsw i32 %result.038, 13
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br label %sw.epilog
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sw.bb3: ; preds = %while.body
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%add4 = add nsw i32 %result.038, 5
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br label %sw.epilog
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sw.bb5: ; preds = %while.body
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%add6 = add nsw i32 %result.038, 2
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br label %sw.epilog
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sw.bb7: ; preds = %while.body
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%add8 = add nsw i32 %result.038, 7
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br label %sw.epilog
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sw.bb9: ; preds = %while.body
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%add10 = add nsw i32 %result.038, 11
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br label %sw.epilog
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sw.bb11: ; preds = %while.body
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%add12 = add nsw i32 %result.038, 17
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br label %sw.epilog
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sw.bb13: ; preds = %while.body
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%add14 = add nsw i32 %result.038, 16
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br label %sw.epilog
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sw.bb15: ; preds = %while.body
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%add16 = add nsw i32 %result.038, 81
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br label %sw.epilog
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sw.bb17: ; preds = %while.body
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%add18 = add nsw i32 %result.038, 72
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br label %sw.epilog
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sw.epilog: ; preds = %while.body, %sw.bb17, %sw.bb15, %sw.bb13, %sw.bb11, %sw.bb9, %sw.bb7, %sw.bb5, %sw.bb3, %sw.bb
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%result.1 = phi i32 [ %result.038, %while.body ], [ %add18, %sw.bb17 ], [ %add16, %sw.bb15 ], [ %add14, %sw.bb13 ], [ %add12, %sw.bb11 ], [ %add10, %sw.bb9 ], [ %add8, %sw.bb7 ], [ %add6, %sw.bb5 ], [ %add4, %sw.bb3 ], [ %add, %sw.bb ]
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%cmp = icmp eq %struct.node* %spec.store.select, null
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br i1 %cmp, label %while.end, label %while.body
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while.end: ; preds = %sw.epilog, %entry
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%result.0.lcssa = phi i32 [ 0, %entry ], [ %result.1, %sw.epilog ]
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ret i32 %result.0.lcssa
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}
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